Artikel ini memberikan latihan soal dan pembahasan Penilaian Tengah Semester 2019 Fisika kelas 12
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Apakah kamu sedang menghadapi Penilaian Tengah Semester? Untuk kamu murid kelas 12 yang berjurusan IPA, ayo persiapkan diri kamu dalam menghadapi PTS khususnya pelajaran Fisika dengan latihan soal Penilaian Tengah Semester Fisika kelas 12 beserta pembahasannya berikut ini.
Baca juga: Latihan dan Pembahasan Soal UTS Fisika SMA Kelas 12
Topik : Listrik Arus Searah
Subtopik : Hambatan Listrik
1. Perhatikan gambar berikut!
Arah arus listrik yang tepat dapat dinyatakan sebagai berikut ….
- ABCDA
- CBADC
- CDABC
- DABCD
- DCBAD
Jawaban : B
Pembahasan :
Arah arus listrik pada rangkaian listrik dengan baterai sebagai sumber tegangan, dinyatakan mengalir dari kutub positif baterai menuju kutub negatif baterai.
Kutub positif baterai berada di dekat titik C dan kutub negatif baterai berada di dekat kutub D. Maka arah arus listrik mengalir berdasarkan gambar tersebut adalah CBADC.
Topik : Listrik Arus Searah
Subtopik : Rangkaian Listrik
2. Perhatikan gambar!
Jika R2 > R3 > R1, maka tegangan pada rangkaian tersebut dapat dinyatakan sebagai berikut ….
- V2 > V3 > V1
- V2 < V3 < V1
- V2 > V1 > V3
- V1 > V3 > V2
- V1 < V2 < V3
Jawaban : A
Pembahasan :
Diketahui :
Hubungan antara tegangan dan hambatan dapat dinyatakan sebagai berikut :
Maka :
Topik : Listrik Arus Searah
Subtopik : Hukum I Kirchoff
3. Perhatikan gambar!
Jika maka nilai adalah ….
- 1,25 A
- 2,25 A
- 3,25 A
- 4,25 A
- 5,25 A
Jawaban : B
Pembahasan :
Diketahui :
Topik : Listrik Arus Searah
Subtopik : Hukum I Kirchoff
4. Perhatikan gambar berikut!
Agar tidak ada arus yang mengalir pada I5, maka nilai I1, I2, I3, dan I4 adalah ….
Jawaban : D
Pembahasan :
Arus pada R5 bernilai nol, jika :
Maka jawaban yang benar adalah D, yaitu :
Sehingga :
Topik : Listrik Arus Searah
Subtopik : Hukum II Kirchoff
5. Perhatikan gambar berikut!
Jika dihubungkan pada 2 hambatan identik dengan nilai hambatan maka kuat arus yang mengalir pada rangkaian tersebut sebesar ….
- 0,125 A
- 0,25 A
- 0,50 A
- 0,75 A
- 1,00 A
Jawaban : B
Pembahasan :
Diketahui :
Hitung hambatan total yang dirangkai seri pada hambatan :
Misalkan arah loop dan arah arus adalah sama, yaitu berlawanan arah jarum jam.
Hukum II Kirchoff menyatakan bahwa di dalam suatu rangkaian tertutup (loop), jumlah atau otal aljabar gaya gerak listrik dan penurunan tegangannya adalah sama.
Tanda minus menunjukkan bahwa arah arus yang digambarkan terbalik.
Topik : Listrik Statis
Subtopik : Listrik Statis dan Muatan Listrik
6. Perhatikan pernyataan-pernyataan berikut ini!
- Mempelajari tentang muatan listrik yang diam dalam jumlah tertentu
- Mempelajari tentang muatan listrik dalam pengaruh sumber tegangan
- Mempelajari interaksi muatan-muatan listrik
- Mempelajari tentang gejala muatan listrik, baik yang diam maupun mengalir
Pernyataan yang benar mengenai listrik statis ditunjukkan oleh nomor ….
- 1, 2, dan 3
- 1 dan 3
- 2 dan 4
- 4 saja
- Semua benar
Jawaban: B
Pembahasan:
Listrik statis merupakan bagian dari ilmu fisika yang mempelajari tentang muatan listrik dalam jumlah tertentu yang diam serta interaksi antara muatan-muatan listrik tersebut.
7. Ion X memiliki 19 proton dan 16 elektron sementara ion Y memiliki 11 proton dan 13 elektron. Atom X dan atom Y kemudian didekatkan. Muatan masing-masing atom dan keadaan kedua atom yang benar berikut ini adalah ….
Pembahasan:
Jawaban: D
Atom X memiliki muatan positif yang lebih banyak daripada muatan negatif, maka atom X bermuatan positif. Atom Y memiliki muatan negatif yang lebih banyak dari muatan positif, maka atom Y bermuatan negatif. Dengan demikian, ketika kedua atom didekatkan, keduanya akan tarik-menarik karena muatan kedua atom berbeda jenis.
Topik : Listrik Statis
Subtopik : Hukum Coulomb
8. Dua buah muatan dan terpisah sejauh 30 cm. Gaya Coulomb yang bekerja pada kedua muatan tersebut adalah ….
- 0,8 N
- 1,6 N
- 2,4 N
- 3,2 N
- 6,4 N
Jawaban: A
Pembahasan:
Gaya Coulomb yang bekerja pada kedua muatan dapat diketahui dengan
Gaya bertanda (-) menunjukkan kedua muatan saling tarik-menarik.
Topik : Listrik Statis
Subtopik: Medan Listrik
9. Kuat medan listrik pada sebuah titik yang berada 4 cm dari sebuah muatan -8 C adalah ….
Jawaban: E
Pembahasan:
Kuat medan listrik di titik tersebut yaitu
Topik : Listrik Statis
Subtopik : Potensial Listrik
10. Dua buah muatan -2 mC dan 4 mC terpisah pada jarak 15 cm satu sama lain. Suatu titik P berada di antara kedua muatan tersebut dan berjarak 5 cm dari muatan -2 mC. Potensial listrik di titik P yaitu … .
- 0
- 180 MV
- 360 MV
- 540 MV
- 720 MV
Jawaban: A
Pembahasan :
Potensial listrik total di titik P yaitu
Itulah tadi 10 soal latihan Penilaian Tengah Semester untuk pelajaran Fisika kelas 12. Membantu ‘kan? Atau mau latihan lebih banyak soal? Kamu bisa juga lho melihat latihan-latihan soal dan video materi beranimasi di ruangbelajar.
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<h1 class="content-title">
Latihan Soal Penilaian Tengah Semester 2019: Fisika Kelas XII </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/shabrina-alfari" class="">Shabrina Alfari</a> </p>
<p class="content-info"><span>September 23, 2019 • </span> <span>4 minutes read</span></p>
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<p style="text-align: justify;"><em><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/UN_-_Latihan_soal_penilaian_tengah_semester_fisika_kelas_12-01.png" alt="latihan soal fisika kelas 12" width="820" /></em></p>
<p><span id="more-7762"></span></p>
<p style="text-align: justify;"><em>Artikel ini memberikan latihan soal dan pembahasan Penilaian Tengah Semester 2019 Fisika kelas 12</em></p>
<p style="text-align: center;">—</p>
<p style="text-align: justify;">Apakah kamu sedang menghadapi Penilaian Tengah Semester? Untuk kamu murid kelas 12 yang berjurusan IPA, ayo persiapkan diri kamu dalam menghadapi PTS khususnya pelajaran Fisika dengan latihan soal Penilaian Tengah Semester Fisika kelas 12 beserta pembahasannya berikut ini.</p>
<p style="text-align: justify;"><strong><span style="color: #990100;">Baca juga:</span> <a href="/latihan-dan-pembahasan-soal-uts-fisika-sma-kelas-12" rel=" noopener">Latihan dan Pembahasan Soal UTS Fisika SMA Kelas 12</a></strong></p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Arus Searah</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Hambatan Listrik</strong></p>
<p style="text-align: justify;"> 1. <span style="background-color: transparent;">Perhatikan gambar berikut!</span></p>
<p style="text-align: justify;"><img decoding="async" style="width: 169px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/1-405577069098.png" alt="latihan soal fisika kelas 12" width="169" /></p>
<p style="text-align: justify;">Arah arus listrik yang tepat dapat dinyatakan sebagai berikut ….</p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>ABCDA</li>
<li>CBADC</li>
<li>CDABC</li>
<li>DABCD</li>
<li>DCBAD</li>
</ol>
<p style="text-align: justify;"><strong>Jawaban : B</strong></p>
<p style="text-align: justify;"><strong>Pembahasan :</strong></p>
<p style="text-align: justify;">Arah arus listrik pada rangkaian listrik dengan baterai sebagai sumber tegangan, dinyatakan mengalir dari kutub positif baterai menuju kutub negatif baterai.</p>
<p style="text-align: justify;">Kutub positif baterai berada di dekat titik C dan kutub negatif baterai berada di dekat kutub D. Maka arah arus listrik mengalir berdasarkan gambar tersebut adalah CBADC.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="latihan soal fisika kelas 12" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Arus Searah</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Rangkaian Listrik</strong></p>
<p style="text-align: justify;"> 2. <span style="background-color: transparent;">Perhatikan gambar!</span></p>
<p style="text-align: justify;"><span style="background-color: transparent;"><img decoding="async" style="width: 154px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/2-96.png" alt="latihan soal fisika kelas 12" width="154" /></span></p>
<p style="text-align: justify;">Jika R<sub>2</sub> > R<sub>3</sub> > R<sub>1</sub>, maka tegangan pada rangkaian tersebut dapat dinyatakan sebagai berikut ….</p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>V<sub>2</sub> > V<sub>3</sub> > V<sub>1</sub></li>
<li>V<sub>2</sub> < V<sub>3</sub> < V<sub>1</sub></li>
<li>V<sub>2</sub> > V<sub>1</sub> > V<sub>3</sub></li>
<li>V<sub>1</sub> > V<sub>3</sub> > V<sub>2</sub></li>
<li>V<sub>1</sub> < V<sub>2</sub> < V<sub>3</sub></li>
</ol>
<p style="text-align: justify;"><strong>Jawaban : A</strong></p>
<p style="text-align: justify;"><strong>Pembahasan :</strong></p>
<p style="text-align: justify;">Diketahui :</p>
<p><img decoding="async" style="width: 105px; float: left;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/3-59.png" alt="3-59" width="105" /></p>
<p style="text-align: left;">
<p style="text-align: left;">Hubungan antara tegangan dan hambatan dapat dinyatakan sebagai berikut :</p>
<p><img decoding="async" style="width: 74px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/4-28.png" alt="4-28" width="74" />Maka :</p>
<p><img decoding="async" style="width: 98px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/5-29.png" alt="5-29" width="98" /></p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Arus Searah</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Hukum I Kirchoff</strong></p>
<p style="text-align: justify;"> 3. <span style="background-color: transparent;">Perhatikan gambar!</span></p>
<p style="text-align: justify;"><span style="background-color: transparent;"><img decoding="async" style="width: 316px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/6-26.png" alt="latihan soal fisika kelas 12" width="316" /></span></p>
<p style="text-align: justify;">Jika<img decoding="async" style="width: 133px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/7-25.png" alt="7-25" width="133" /> maka nilai <img decoding="async" style="width: 19px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/8-25.png" alt="8-25" width="19" /> adalah ….</p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>1,25 A</li>
<li>2,25 A</li>
<li>3,25 A</li>
<li>4,25 A</li>
<li>5,25 A</li>
</ol>
<p style="text-align: justify;"><strong>Jawaban : B</strong></p>
<p style="text-align: justify;"><strong>Pembahasan :</strong></p>
<p style="text-align: justify;">Diketahui :</p>
<p style="text-align: justify;"><img decoding="async" style="width: 416px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/9-29.png" alt="9-29" width="416" /></p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Arus Searah</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Hukum I Kirchoff</strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">4. Perhatikan gambar berikut!</span></p>
<p style="text-align: justify;"><span style="background-color: transparent;"><img decoding="async" style="width: 210px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/10-23.png" alt="latihan soal fisika kelas 12" width="210" /></span></p>
<p style="text-align: justify;">Agar tidak ada arus yang mengalir pada I<sub>5</sub>, maka nilai I<sub>1</sub>, I<sub>2</sub>, I<sub>3</sub>, dan I<sub>4</sub> adalah ….</p>
<p><img decoding="async" style="width: 315px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/11-132.png" alt="11-132" width="315" /></p>
<p style="text-align: justify;"><strong>Jawaban : D</strong></p>
<p style="text-align: justify;"><strong>Pembahasan :</strong></p>
<p style="text-align: justify;">Arus pada R<sub>5</sub> bernilai nol, jika :</p>
<p><img decoding="async" style="width: 123px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/12-22.png" alt="12-22" width="123" />Maka jawaban yang benar adalah D, yaitu :</p>
<p><img decoding="async" style="width: 73px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/13-20.png" alt="13-20" width="73" />Sehingga :<strong><img decoding="async" style="width: 136px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/14-5577069083.png" alt="14-5577069083" width="136" /><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></strong></p>
<p style="text-align: justify;"><strong>Topik : Listrik Arus Searah</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Hukum II Kirchoff</strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">5. Perhatikan gambar berikut!</span></p>
<p style="text-align: justify;"><span style="background-color: transparent;"><img decoding="async" style="width: 128px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/15-16.png" alt="latihan soal fisika kelas 12" width="128" /></span></p>
<p style="text-align: justify;">Jika <img decoding="async" style="width: 195px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/16-15.png" alt="16-15" width="195" /> dihubungkan pada 2 hambatan identik dengan nilai hambatan <img decoding="async" style="width: 29px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/17-13.png" alt="17-13" width="29" /> maka kuat arus yang mengalir pada rangkaian tersebut sebesar ….</p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>0,125 A</li>
<li>0,25 A</li>
<li>0,50 A</li>
<li>0,75 A</li>
<li>1,00 A</li>
</ol>
<p style="text-align: justify;"><strong>Jawaban : B</strong></p>
<p style="text-align: justify;"><strong>Pembahasan :</strong></p>
<p style="text-align: justify;">Diketahui :</p>
<p style="text-align: justify;"><img decoding="async" style="width: 116px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/18-13.png" alt="18-13" width="116" /></p>
<p style="text-align: justify;">Hitung hambatan total yang dirangkai seri pada hambatan :</p>
<p><img decoding="async" style="width: 204px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/19-12.png" alt="19-12" width="204" /></p>
<p>Misalkan arah loop dan arah arus adalah sama, yaitu berlawanan arah jarum jam.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 127px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/20-11.png" alt="latihan soal fisika kelas 12" width="127" /></p>
<p style="text-align: justify;">Hukum II Kirchoff menyatakan bahwa di dalam suatu rangkaian tertutup (loop), jumlah atau otal aljabar gaya gerak listrik dan penurunan tegangannya adalah sama.</p>
<p><img decoding="async" style="width: 145px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/21-10.png" alt="21-10" width="145" /></p>
<p>Tanda minus menunjukkan bahwa arah arus yang digambarkan terbalik.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Statis</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Listrik Statis dan Muatan Listrik</strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">6. Perhatikan pernyataan-pernyataan berikut ini!</span></p>
<ul style="text-align: justify;">
<li>Mempelajari tentang muatan listrik yang diam dalam jumlah tertentu</li>
<li>Mempelajari tentang muatan listrik dalam pengaruh sumber tegangan</li>
<li>Mempelajari interaksi muatan-muatan listrik</li>
<li>Mempelajari tentang gejala muatan listrik, baik yang diam maupun mengalir</li>
</ul>
<p style="text-align: justify;">Pernyataan yang benar mengenai listrik statis ditunjukkan oleh nomor ….</p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>1, 2, dan 3</li>
<li>1 dan 3</li>
<li>2 dan 4</li>
<li>4 saja</li>
<li>Semua benar</li>
</ol>
<p style="text-align: justify;"><strong>Jawaban: B</strong></p>
<p style="text-align: justify;"><strong>Pembahasan:</strong></p>
<p style="text-align: justify;">Listrik statis merupakan bagian dari ilmu fisika yang mempelajari tentang muatan listrik dalam jumlah tertentu yang diam serta interaksi antara muatan-muatan listrik tersebut.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;">7. Ion X memiliki 19 proton dan 16 elektron sementara ion Y memiliki 11 proton dan 13 elektron. Atom X dan atom Y kemudian didekatkan. Muatan masing-masing atom dan keadaan kedua atom yang benar berikut ini adalah ….</p>
<p style="text-align: justify;"><strong style="background-color: transparent;"><img decoding="async" style="width: 475px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/22-11.png" alt="latihan soal fisika kelas 12" width="475" /><br />
Pembahasan:</strong></p>
<p style="text-align: justify;"><strong style="font-family: 'Source Sans Pro', sans-serif;">Jawaban: D</strong></p>
<p style="text-align: justify;">Atom X memiliki muatan positif yang lebih banyak daripada muatan negatif, maka atom X bermuatan positif. Atom Y memiliki muatan negatif yang lebih banyak dari muatan positif, maka atom Y bermuatan negatif. Dengan demikian, ketika kedua atom didekatkan, keduanya akan tarik-menarik karena muatan kedua atom berbeda jenis.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Statis</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Hukum Coulomb</strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">8. Dua buah muatan <img decoding="async" style="width: 109px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/23-8.png" alt="23-8" width="109" />dan terpisah sejauh 30 cm. Gaya Coulomb yang bekerja pada kedua muatan tersebut adalah ….</span></p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>0,8 N</li>
<li>1,6 N</li>
<li>2,4 N</li>
<li>3,2 N</li>
<li>6,4 N</li>
</ol>
<p style="text-align: justify;"><strong>Jawaban: A</strong></p>
<p style="text-align: justify;"><strong>Pembahasan:</strong></p>
<p style="text-align: justify;">Gaya Coulomb yang bekerja pada kedua muatan dapat diketahui dengan</p>
<p><img decoding="async" style="width: 255px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/24-7.png" alt="24-7" width="255" />Gaya bertanda (-) menunjukkan kedua muatan saling tarik-menarik.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Statis</strong></p>
<p style="text-align: justify;"><strong>Subtopik: Medan Listrik</strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">9. Kuat medan listrik pada sebuah titik yang berada 4 cm dari sebuah muatan -8 C adalah ….</span></p>
<p><img decoding="async" style="width: 116px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/25-7.png" alt="25-7" width="116" /></p>
<p style="text-align: justify;"><strong>Jawaban: E</strong></p>
<p style="text-align: justify;"><strong>Pembahasan:</strong></p>
<p style="text-align: justify;">Kuat medan listrik di titik tersebut yaitu</p>
<p><img decoding="async" style="width: 141px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/26-6.png" alt="26-6" width="141" /></p>
<p style="text-align: justify;"><img decoding="async" style="width: 820px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/soal%20un-7.png" alt="soal un-7" width="820" /></p>
<p style="text-align: justify;"><strong>Topik : Listrik Statis</strong></p>
<p style="text-align: justify;"><strong>Subtopik : Potensial Listrik</strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">10. Dua buah muatan -2 mC dan 4 mC terpisah pada jarak 15 cm satu sama lain. Suatu titik P berada di antara kedua muatan tersebut dan berjarak 5 cm dari muatan -2 mC. Potensial listrik di titik P yaitu … .</span></p>
<ol style="list-style-type: upper-alpha; text-align: justify;">
<li>0</li>
<li>180 MV</li>
<li>360 MV</li>
<li>540 MV</li>
<li>720 MV</li>
</ol>
<p style="text-align: justify;"><strong>Jawaban: A</strong></p>
<p style="text-align: justify;"><strong>Pembahasan :</strong></p>
<p style="text-align: justify;"><img decoding="async" style="width: 183px;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/27-6.png" alt="27-6" width="183" /></p>
<p style="text-align: justify;">Potensial listrik total di titik P yaitu</p>
<p><img decoding="async" style="width: 360px; display: block; margin-left: auto; margin-right: auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/28-6.png" alt="28-6" width="360" /></p>
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<li><a href="https://www.ruangkerja.id/" target="_blank">Ruangkerja</a></li>
<li><a href="https://www.schoters.com/id/" target="_blank">Schoters</a></li>
<li><a href="https://www.kalananti.id/" target="_blank">Kalananti</a></li>
</ul>
</nav>
</div>
<div class="col-6 col-md-3">
<nav class="footer-menu">
<p class="title"> Coba GRATIS Aplikasi Ruangguru</p>
<div class="download-list">
<ul>
<li>
<a target="_blank" rel="nofollow" href="https://apps.apple.com/id/app/ruangguru-solusi-belajar/id1099742206?l=id">
<img src="https://cdn-web-2.ruangguru.com/static/appstore.png" loading="lazy" alt="Button App Store Footer " />
</a>
</li>
<li>
<a target="_blank" rel="nofollow" href="https://play.google.com/store/apps/details?id=com.ruangguru.livestudents&hl=in">
<img src="https://cdn-web-2.ruangguru.com/static/googleplay.png" loading="lazy" alt="Button Google Play Footer " />
</a>
</li>
<li>
<a target="_blank" rel="nofollow" href="https://appgallery.huawei.com/#/app/C102352375">
<img src="https://cdn-web-2.ruangguru.com/static/huawei.png" loading="lazy" alt="Button AppGallery Footer " />
</a>
</li>
</ul>
</div>
</nav>
</div>
</div>
</div>
</div>
<div class="d-lg-none text-center">
<nav class="footer-menu social">
<p class="title">Ikuti Kami</p>
<a target="_blank" href="https://www.instagram.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/instagram.png" loading="lazy" alt="Logo Instagram Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.facebook.com/ruanggurucom/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/facebook.png" loading="lazy" alt="Logo Facebook Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://twitter.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/twitter.png" loading=" lazy" alt="Logo Twitter Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.youtube.com/ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60&convert=webp" type="image/webp">
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<img src="https://cdn-web-2.ruangguru.com/static/youtube.png" loading=" lazy" alt="Logo Youtube Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.linkedin.com/company/ruangguru-com">
<picture>
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</picture>
</a>
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</picture>
</a>
</nav>
</div>
<p class="footer-copyright">
© 2026 All Rights Reserved PT. Ruang Raya Indonesia
</p>
</div>
<style>
.bantuan-container {
position: relative;
}
.bantuan-element {
position: fixed;
z-index: 999;
display: flex;
align-items: flex-end;
justify-content: flex-end;
cursor: pointer;
transition: all 0.6s ease;
}
.bantuan-top {
bottom: 11rem;
right: 2rem;
}
.bantuan-bottom {
bottom: 2rem;
right: 2rem;
}
.bantuan-top-2 {
bottom: 15rem;
right: 2rem;
}
.bantuan-top-3 {
bottom: 19rem;
right: 2rem;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 2rem;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 2rem;
}
@media (min-width: 768px) {
.bantuan-element img {
width: auto;
transition: all 0.4s ease;
}
.bantuan-top img {
width: 140px;
}
.bantuan-bottom img {
width: 140px;
}
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 140px;
}
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 140px;
}
.bantuan-element.clicked {
bottom: 9rem;
right: 2.5rem;
}
.bantuan-element.clicked img {
width: auto;
height: 64px;
}
}
@media (max-width: 767px) {
.bantuan-top {
bottom: 8rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom {
bottom: 2rem;
right: 1.25rem;
align-items: center;
}
.bantuan-top-2 {
bottom: 12rem;
right: 1rem;
align-items: center;
}
.bantuan-top-3 {
bottom: 16rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 1.25rem;
align-items: center;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 1.25rem;
align-items: center;
}
.bantuan-element img {
width: auto;
}
.bantuan-top img,
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 96px;
}
.bantuan-bottom img,
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 96px;
}
}
.bantuan-element:hover {
transform: scale(1.05);
}
.bantuan-element img {
max-width: 100%;
height: auto;
}
</style>
<div id="bantuan-divs-container" style="position: relative" data-product="ruangguru" data-table="rg_floating_icon"></div>
<script>
class FloatingDivsComponent {
constructor(product = 'ruangguru', table = 'rg_floating_icon') {
this.container = document.getElementById('bantuan-divs-container');
this.floatingElements = [];
this.product = product;
this.table = table;
// Configuration
this.config = {
baseApiUrl: 'https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/rg_banner/views/',
apiKey: 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
maxElements: 2,
zIndexBase: 100,
};
// Build dynamic API URL based on table parameter
this.config.apiUrl = this.buildApiUrl();
this.init();
}
buildApiUrl() {
const baseUrl = this.config.baseApiUrl;
const tableName = this.table || 'rg_floating_icon';
const queryParams =
'offset=0&limit=99999&sort=rankPosition&where=(type,eq,floating)~and(showIn,anyof,blog)~and(hide,is,false)~and(product,eq,' +
this.product +
')&nested%5Bcta%5D%5Bfields%5D=Id,name,ctaId,imageUrl,ctaLink,targetUrl';
return `${baseUrl}${tableName}?${queryParams}`;
}
async init() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to initialize floating divs component:', error);
}
}
async fetchFloatingElements() {
try {
const options = {
method: 'GET',
headers: {
'xc-token': this.config.apiKey || 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
},
};
const urlNoco = this.config.apiUrl;
const response = await fetch(urlNoco, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
this.floatingElements = this.processApiResponse(data);
} catch (error) {
console.error('Error fetching floating elements:', error);
throw error;
}
}
processApiResponse(data) {
if (!data || !data.list || !Array.isArray(data.list)) {
return [];
}
console.log(data.list);
// Ensure we only get maximum 2 elements
const limitedElements = data.list.slice(0, this.config.maxElements);
return limitedElements;
}
renderFloatingElements() {
if (!this.container || this.floatingElements.length === 0) {
return;
}
// Additional safeguard: ensure we never render more than maxElements
const elementsToRender = this.floatingElements.slice(0, this.config.maxElements);
// Clean up existing elements and their event listeners
this.cleanupExistingElements();
// Clear existing content
this.container.innerHTML = '';
elementsToRender.forEach((element, index) => {
const floatingDiv = this.createFloatingDiv(element, index);
this.container.appendChild(floatingDiv);
});
}
cleanupExistingElements() {
// Clear existing elements (no need for event listener cleanup with CSS approach)
const existingElements = this.container.querySelectorAll('[data-floating-element]');
existingElements.forEach(element => {
element.remove();
});
}
createFloatingDiv(element, index) {
const div = document.createElement('div');
const cta = element.cta[0]; // Use the first CTA
// Add data attribute for cleanup tracking
div.setAttribute('data-floating-element', 'true');
// Apply CSS classes based on rankPosition
const positionClass = this.getPositionClass(element.rankPosition, index);
div.className = `bantuan-element ${positionClass}`;
div.style.zIndex = this.config.zIndexBase + index;
// Create the link and image
const link = document.createElement('a');
link.href = 'https://cta.ruangguru.com/' + cta.ctaId || '#';
link.target = '_blank';
// Add tracking attributes
link.setAttribute('data-tracking-event-type', 'landing_page__core__item_click');
link.setAttribute(
'data-tracking-context',
JSON.stringify({
product_name: this.product,
cta_action: 'redirection',
cta_action_detail: link.href,
item_type: 'floating',
item_name: element.name || 'Floating element',
item_category: 'payment',
item_position: index,
item_serial: null,
section_type: 'floating_item',
section_position: 'body',
section_name: 'floating_item',
})
);
const img = document.createElement('img');
img.src = element.imageUrl + '?h=200&convert=webp';
img.alt = element.name || 'Floating element';
img.loading = 'lazy';
// Add click tracking
link.addEventListener('click', () => {
this.trackClick(element, cta);
});
link.appendChild(img);
div.appendChild(link);
return div;
}
getPositionClass(rankPosition, index) {
// Define positioning classes based on rankPosition
if (rankPosition === 1) {
return 'bantuan-top'; // Top position
} else if (rankPosition === 2) {
return 'bantuan-bottom'; // Bottom position
} else {
// For additional elements, distribute them evenly
return `bantuan-${index % 2 === 0 ? 'top' : 'bottom'}-${Math.floor(index / 2) + 1}`;
}
}
trackClick(element, cta) {
// Implement click tracking logic here
console.log('Floating element clicked:', {
elementId: element.Id,
elementName: cta.name,
ctaId: cta.ctaId,
targetUrl: cta.targetUrl,
});
}
// Public method to manually refresh
async refresh() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to refresh floating elements:', error);
throw error;
}
}
// Public method to get current floating elements
getFloatingElements() {
return [...this.floatingElements];
}
}
// Initialize the component when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
// Get product and table parameters from data attributes
const container = document.getElementById('bantuan-divs-container');
const product = container.getAttribute('data-product') || 'ruangguru';
const table = container.getAttribute('data-table') || 'rg_floating_icon';
new FloatingDivsComponent(product, table);
});
// Export for use in other modules if needed
if (typeof module !== 'undefined' && module.exports) {
module.exports = FloatingDivsComponent;
}
</script> <div id="wp-install-nudge" style="
position: fixed;
bottom: 0rem;
right: 0;
z-index: 999;
cursor: pointer;
"></div>
<script>
(function (w, d, s, o, f, js, fjs) {
w['Sales-Nudge-Widget'] = o; w[o] = w[o] || function () { (w[o].q = w[o].q || []).push(arguments) };
js = d.createElement(s), fjs = d.getElementsByTagName(s)[0];
js.id = o; js.src = f; js.async = 1; fjs.parentNode.insertBefore(js, fjs);
}(window, document, 'script', 'wpInstallNudge', 'https://cdn-web-2.ruangguru.com/sales-nudge/6198a95130/dist/widget.js'));
wpInstallNudge('init', { targetElementId: 'wp-install-nudge', clientTarget: 'ruangguru_blog' });
</script>
<script>
// note: disabled due to auto reload page
// var lastScrollTop = 0;
// $(window).scroll(function(event){
// var st = $(this).scrollTop();
// if (st > lastScrollTop){
// $('#wp-install-nudge').slideDown( "slow", function() {});
// } else {
// $('#wp-install-nudge').slideUp( "slow", function() {});
// }
// lastScrollTop = st;
// });
// $(document).ready(function () {
// $("#wp-install-nudge").hide();
// });
$('#wp-install-nudge').click(function(){
Analytics.track("promotion__install_nudge__click",
{
user_email: "ruangguru@blog.com",
cta_link: widgetData.dataConfig.target_link
}).catch((err) => {
console.log("tracker error", err);
});
});
</script>
</footer>
<div id="__next"></div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/blog\/*"},{"not":{"href_matches":["\/blog\/wp-*.php","\/blog\/wp-admin\/*","\/blog\/wp-content\/uploads\/*","\/blog\/wp-content\/*","\/blog\/wp-content\/plugins\/*","\/blog\/wp-content\/themes\/ruangguru\/*","\/blog\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script>
async function getCtaDetails(ctaIds) {
const endpoint =
" https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/CTA/views/CTA?offset=0&limit=10&where=(ctaId,in," + ctaIds.toString() + ")";
try {
const response = await fetch(endpoint, {
headers: {
"xc-token": "-hG2nBDJzSj0agSgNtcJx97M4F02y54nUMoY6plJ",
},
});
const data = await response.json();
const ctaList = data?.list || [];
const ctaMap = new Map();
for (const ctaData of ctaList) {
ctaMap.set(ctaData.ctaId, ctaData);
}
return ctaMap;
} catch (error) {
console.error("Error fetching CTA details:", error);
return new Map();
}
}
async function replaceCTA() {
const regex = /{{cta\((‘(.*?)’|“(.*?)”)\)}}/g;
const bodyHTML = document.body.innerHTML;
const matches = Array.from(bodyHTML.matchAll(regex));
const ctaIds = matches.map((match) => {
let ctaId = match[2] ?? match[3];
return ctaId;
});
const ctaMap = await getCtaDetails(ctaIds);
const replacedHTML = bodyHTML.replace(regex, (match, _inner, ctaId1, ctaId2) => {
const ctaId = ctaId1 ?? ctaId2;
const ctaData = ctaMap.get(ctaId);
if (ctaData) {
return `<a href="https://cta.ruangguru.com/${ctaData.ctaId}" target="_${ctaData.targetType}" style="position:relative;display:inline-block;">
<img src="${ctaData.imageUrl}" loading="lazy" alt="${ctaData.altText}" />
</a>`;
} else {
return match;
}
});
document.body.innerHTML = replacedHTML;
}
</script>
<meta name="author" content="Ruangguru Tech Team">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PVNLZFT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- Tracker -->
<script type="text/javascript" src="https://cdn-web-2.ruangguru.com/landing-page-web/public/staticpages/global-assets/js/cta.js"></script>
<script src="https://unpkg.com/@dotlottie/player-component@latest/dist/dotlottie-player.mjs" type="module"></script>
</body>
</html>