# Topic Questions: 110 understand how to use Faraday's law to determine the magnitude of an induced e.m.f. and be able to use the equation that combines Faraday's and Lenz's laws $E=\frac{-d(N\phi)}{dt}$ — WPH14 Electric and Magnetic Fields

> 52 WPH14 Electric and Magnetic Fields topic questions (170 marks) on 110 understand how to use Faraday's law to… — 20 papers, 2020–2026. Open the exact…

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Edexcel IAL · Physics · WPH14 · Electric and Magnetic Fields

52 WPH14 Electric and Magnetic Fields topic questions are tagged to this syllabus point across 20 papers (2020–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.

- 52 topic questions
- 20 papers
- 170 tagged marks
- 17.1% of topic questions
- 22.1% of topic marks
- 2020–2026
- Syllabus 2018–current
- [All WPH14 Electric and Magnetic Fields topic questions](https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/electric-and-magnetic-fields/)
- [All paper codes](https://www.examsci.com/topics/)

Core finding

**This Electric and Magnetic Fields syllabus point appears in 20 WPH14 papers across 2020–2026, contributing 52 topic questions and 170 marks.** The most recent appearance is WPH14/01 January 2026. That equals 17.1% of the 304 topic questions and 22.1% of the 770 marks tagged to Electric and Magnetic Fields. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history.

## Topic questions by session

Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub.

| Paper | Question | Type | Parts | Marks | Difficulty | Practice |
| --- | --- | --- | --- | --- | --- | --- |
| [**WPH14/01** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2026-january-wph14-01/#q-17) | **Q17** Coil Rotating in Magnetic Field (AC Generator) - Edexcel IAL Physics Unit 4 Jan 2026 Q17 | FRQ | 4 parts ((a)(i), (a)(ii), (b), (c)) | 12 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=07537f0c-01cf-4760-bd10-3eed77f7d0a6&question_id=8aa080c0-ead5-4d59-9727-6548cc1c1554&source_detail=WPH14%2F01+January+2026) |
| [**WPH14/02** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2026-january-wph14-02/#q-9) | **Q9** Induced Current in a Coil - Edexcel IAL Physics Jan 2026 Q9 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ee1f4910-5f08-42aa-b80e-e6f9fada0b73&question_id=771c59f3-daae-401e-af63-b0dd7f2555c0&source_detail=WPH14%2F02+January+2026) |
| [**WPH14/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-01/#q-6) | **Q6** Increasing Induced EMF in Coils - Edexcel IAL Physics Oct 2025 Q6 | MCQ | MCQ · 1 part | 1 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=c925843a-0326-4cc4-a60c-ebad9960c7c0&question_id=e6b6e922-5773-4ced-90fa-d718847a1439&source_detail=WPH14%2F01+October+2025) |
| [**WPH14/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-01/#q-14) | **Q14** Aeroplane Flying in Earth's Magnetic Field - Edexcel IAL Physics Oct 2025 Q14 | FRQ | 2 of 3 parts ((a)(ii), (b)) | 5 of 6 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=c925843a-0326-4cc4-a60c-ebad9960c7c0&question_id=a26fb5d9-a78c-4968-a9cf-3eb8904823b7&source_detail=WPH14%2F01+October+2025) |
| [**WPH14/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-01/#q-22) | **Q22** Copper Rod Electromagnetic Induction and Lenz's Law - Edexcel IAL Physics Oct 2025 Q22 | FRQ | 1 of 3 parts ((c)) | 5 of 11 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=c925843a-0326-4cc4-a60c-ebad9960c7c0&question_id=b53b1397-a9b4-4e41-999a-708afa33bcd0&source_detail=WPH14%2F01+October+2025) |
| [**WPH14/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-02/#q-9) | **Q9** Induced EMF Graph Selection - Edexcel IAL Physics Oct 2025 Q9 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=19a8118b-74b7-4fe4-9125-57c7428661ba&question_id=aa243bbe-2d24-40ca-9032-172668bbcba4&source_detail=WPH14%2F02+October+2025) |
| [**WPH14/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-october-wph14-02/#q-14) | **Q14** Coil Generator EMF Calculations - Edexcel IAL Physics Oct 2025 Q14 | FRQ | 2 of 3 parts ((a), (c)) | 4 of 6 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=19a8118b-74b7-4fe4-9125-57c7428661ba&question_id=eead3e25-3934-4e3a-b7ee-3f4dcc6258af&source_detail=WPH14%2F02+October+2025) |
| [**WPH14/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-june-wph14-01/#q-18) | **Q18** Wireless Charging Electromagnetic Induction - Edexcel IAL Physics June 2025 Q18 | FRQ | 1 of 3 parts ((a)) | 4 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3fa77855-5a47-4e9d-9d77-8e6feeafb348&question_id=f867ca23-7ca6-4cfc-b9ff-f1e1516086a5&source_detail=WPH14%2F01+June+2025) |
| [**WPH14/01** January 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2025-january-wph14-01/#q-18) | **Q18** Magnetic Strip Card Reader - Edexcel IAL Physics Jan 2025 Q18 | FRQ | 2 parts ((a), (b)) | 9 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3fa71427-5fa5-4200-87e4-7de25234272d&question_id=c64cda6f-e151-448a-a224-7458818f5bbc&source_detail=WPH14%2F01+January+2025) |
| [**WPH14/01** October 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-october-wph14-01/#q-15) | **Q15** Electromagnetic Induction in a Simple Motor - Edexcel IAL Physics Oct 2024 Q15 | FRQ | 1 of 4 parts ((b)(ii)) | 5 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b5bd6e3e-5afd-4869-ad78-ba1875109b46&question_id=f4bc8903-7eb2-4e14-b6bc-b993b7657abf&source_detail=WPH14%2F01+October+2024) |
| [**WPH14/01** June 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-june-wph14-01/#q-18) | **Q18** Spark Plug Electromagnetic Induction - Edexcel IAL Physics Unit 4 June 2024 Q18 | FRQ | 3 parts ((a), (b), (c)) | 11 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=cd6c5948-4054-4ae4-8638-e8fde551f1f4&question_id=889d5128-6686-4425-bc55-01b6373e64fc&source_detail=WPH14%2F01+June+2024) |
| [**WPH14/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-january-wph14-01/#q-8) | **Q8** Lenz's Law and Magnetic Poles - Edexcel IAL Physics Jan 2024 Q8 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7f671b10-3bb0-47d7-9ab5-58b3498dd1dd&question_id=362db640-c204-4e64-a9a8-24f48f1c6dff&source_detail=WPH14%2F01+January+2024) |
| [**WPH14/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-january-wph14-01/#q-16) | **Q16** Induced EMF Across Aeroplane Wing Tips - Edexcel IAL Physics Jan 2024 Q16 | FRQ | 1 part | 4 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7f671b10-3bb0-47d7-9ab5-58b3498dd1dd&question_id=9a597d20-836d-497a-80fc-502a42d57e67&source_detail=WPH14%2F01+January+2024) |
| [**WPH14/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2024-january-wph14-01/#q-21) | **Q21** Electromagnetic Induction in Cookers - Edexcel IAL Physics Jan 2024 Q21 | FRQ | 2 parts ((a), (b)) | 8 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=7f671b10-3bb0-47d7-9ab5-58b3498dd1dd&question_id=e1eaa15c-f4a0-48ea-b5a9-f8b9d274a0bb&source_detail=WPH14%2F01+January+2024) |
| [**WPH14/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-october-wph14-01/#q-16) | **Q16** Induced e.m.f. Variation in Falling Magnet - Edexcel IAL Physics Oct 2023 Q16 | FRQ | 1 part | 6 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=63cf6d9e-c5b2-42b1-b898-7773fe6081a7&question_id=9525e06d-fc21-4e89-a22a-76b9a12db635&source_detail=WPH14%2F01+October+2023) |
| [**WPH14/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-october-wph14-01/#q-17) | **Q17** Induced e.m.f. on Sliding Copper Rod - Edexcel IAL Physics Oct 2023 Q17 | FRQ | 2 parts ((a), (b)) | 6 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=63cf6d9e-c5b2-42b1-b898-7773fe6081a7&question_id=b145133d-995e-46e5-bacf-a274b524851c&source_detail=WPH14%2F01+October+2023) |
| [**WPH14/01** June 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-june-wph14-01/#q-16) | **Q16** Search Coil Electromagnetic Induction - Edexcel IAL Physics June 2023 Q16 | FRQ | 3 of 4 parts ((a), (c), (d)) | 10 of 13 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2055a28e-816f-4ab5-8253-c37cfd7dd7b9&question_id=dc628ff4-af44-43ef-bcfe-5a723d988b89&source_detail=WPH14%2F01+June+2023) |
| [**WPH14/01** January 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2023-january-wph14-01/#q-15) | **Q15** Electromagnetic Induction and Lenz's Law - Edexcel IAL Physics Jan 2023 Q15 | FRQ | 2 parts ((a), (b)) | 11 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=495cc00c-1d7f-4297-981d-c1c626ca134d&question_id=1c2dc2e6-9f7e-44ed-9e7e-6aa56ffc5a2c&source_detail=WPH14%2F01+January+2023) |
| [**WPH14/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-october-wph14-01/#q-10) | **Q10** Induced EMF in Coils - Edexcel IAL Physics Oct 2022 Q10 | MCQ | MCQ · 1 part | 1 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9be141d5-8b06-4cb6-8fa6-68d1cc9a6174&question_id=56f96651-947d-40f3-a24f-c80085e83870&source_detail=WPH14%2F01+October+2022) |
| [**WPH14/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-october-wph14-01/#q-14) | **Q14** Lenz's Law and Falling Magnet - Edexcel IAL Physics Oct 2022 Q14 | FRQ | 1 part | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9be141d5-8b06-4cb6-8fa6-68d1cc9a6174&question_id=a7b59774-cbb5-4cfb-b45e-22353f1dec44&source_detail=WPH14%2F01+October+2022) |
| [**WPH14/01** June 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-june-wph14-01/#q-10) | **Q10** Induced EMF in Coil - Edexcel IAL Physics June 2022 Q10 | MCQ | MCQ · 1 part | 1 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=6042feb3-c856-448e-8691-d6933b5190bc&question_id=1cf3972f-c94c-43d3-b831-b3ba4887db49&source_detail=WPH14%2F01+June+2022) |
| [**WPH14/01** June 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-june-wph14-01/#q-18) | **Q18** Electromagnetic Braking of a Glider - Edexcel IAL Physics June 2022 Q18 | FRQ | 3 of 6 parts ((b)(i), (b)(ii), (c)(ii)) | 7 of 15 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=6042feb3-c856-448e-8691-d6933b5190bc&question_id=fc7f4592-0910-454c-86af-0be348c0cc5a&source_detail=WPH14%2F01+June+2022) |
| [**WPH14/01** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2022-january-wph14-01/#q-18) | **Q18** Faraday's Law and Induction Motor Principle - Edexcel IAL Physics Jan 2022 Q18 | FRQ | 2 of 3 parts ((b), (c)) | 12 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=49fe32a1-ed2d-43cb-8e5c-01ad7a065d74&question_id=57b1c681-fce5-4216-9fad-8b52cd40c969&source_detail=WPH14%2F01+January+2022) |
| [**WPH14/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-october-wph14-01/#q-5) | **Q5** Magnetic Flux Linkage Change - Edexcel IAL Physics Oct 2021 Q5 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8cbfca05-d9d4-4992-a2fe-4a148f95c213&question_id=28adf798-f2d6-43ae-8700-0d75e0321a48&source_detail=WPH14%2F01+October+2021) |
| [**WPH14/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-october-wph14-01/#q-15) | **Q15** Roller Coaster Dynamics and Electromagnetic Braking - Edexcel IAL Physics Oct 2021 Q15 | FRQ | 1 of 3 parts ((b)) | 5 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8cbfca05-d9d4-4992-a2fe-4a148f95c213&question_id=c4b33fd6-dee6-4a26-baf3-0691c8f54564&source_detail=WPH14%2F01+October+2021) |
| [**WPH14/01** June 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-june-wph14-01/#q-6) | **Q6** Electromagnetic Induction in a Coil - June 2021 Q6 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b192ea77-92eb-44fc-91ce-d3a09157fcbf&question_id=04c108df-8d34-4f7a-9912-f53286de705d&source_detail=WPH14%2F01+June+2021) |
| [**WPH14/01** June 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-june-wph14-01/#q-14) | **Q14** Investigation of Lenz's Law - June 2021 Q14 | FRQ | 1 part | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b192ea77-92eb-44fc-91ce-d3a09157fcbf&question_id=b02eb0bf-4b2f-4f23-ad9d-fb3b75e14ae9&source_detail=WPH14%2F01+June+2021) |
| [**WPH14/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2021-january-wph14-01/#q-16) | **Q16** Electromagnetic Induction in Tokamak Plasma - Edexcel IAL Physics Jan 2021 Q16 | FRQ | 3 parts ((a), (b)(i), (b)(ii)) | 10 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ad4d3bdd-35e1-4b4e-8408-0afd068c0d8f&question_id=4d2ed8d8-eba2-4b9f-a3f4-a47ce0785547&source_detail=WPH14%2F01+January+2021) |
| [**WPH14/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-october-wph14-01/#q-10) | **Q10** Magnet Dropped Through Coil Lenz's Law - Edexcel IAL Physics June 2020 Q10 | MCQ | MCQ · 1 part | 1 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=fd185779-00c6-4239-82cf-edc1f6fde6bd&question_id=e937383b-4a7b-4888-8cd8-44011ac0d524&source_detail=WPH14%2F01+October+2020) |
| [**WPH14/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-october-wph14-01/#q-15) | **Q15** Mouse Trap Comparison (Mechanical vs Electronic) - Edexcel IAL Physics June 2020 Q15 | FRQ | 1 of 4 parts ((b)(ii)) | 3 of 16 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=fd185779-00c6-4239-82cf-edc1f6fde6bd&question_id=513ffce5-1726-48b5-8102-c24a69df16c6&source_detail=WPH14%2F01+October+2020) |
| [**WPH14/01** January 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/physics/physics-unit-4-wph14/2020-january-wph14-01/#q-18) | **Q18** A.C. Generator Analysis - Edexcel IAL Physics Jan 2020 Q18 | FRQ | 4 parts ((a), (b)(i), (b)(ii), (b)(iii)) | 12 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5ef0bb69-523b-4ef4-b94b-964485f16e14&question_id=d7031d8e-b8b5-46dc-b612-9a39805ce140&source_detail=WPH14%2F01+January+2020) |

## Related topic questions in Electric and Magnetic Fields

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## Topic question rules and edge cases

**How many topic questions cover this syllabus point?**

31 question stems cover this subtopic across 20 papers, but only 52 tagged parts and 170 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page.

**Which papers include this subtopic?**

The table lists every matching session from 2020–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available.

**Why can one question appear under several subtopics?**

The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement.

**Can I practise these questions with AI marking?**

Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript.

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Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/physics/physics-unit-4-wph14/electric-and-magnetic-fields/110-understand-how-to-use-faraday-s-law-to-determine-the-magnitude-of-an-induced-e-m/