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Magnetic fields and forces: Edexcel A‑Level Physics questions

Every Edexcel A-Level Physics exam question on Magnetic fields and forces (specification points 121–123), 2016–2025, with its mark scheme and examiner’s report.

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1,540 questions

  1. Q5

    June 2025 · Paper 1

    1 markMagnetic fields and forces
    The whole paper ↗
    June 2025 Paper 1, question 5: A positron produced a track in a detector, as shown. (Source: © Science Source/SCIENCE PHOTO LIBRARY) Which of the following is the direction of the magnetic fi

  2. Q6

    June 2024 · Paper 1

    1 markMagnetic fields and forces
    The whole paper ↗
    June 2024 Paper 1, question 6: A square coil has sides of length l and carries a current I, as shown. The plane of the coil is parallel to a magnetic field of flux density B. Q R magnet magne

  3. Q16(a)

    June 2023 · Paper 1

    6 marksMagnetic fields and forces
    The whole paper ↗
    June 2023 Paper 1, question 16(a): Describe how this arrangement can lead to the coil rotating. (6)

  4. Q5

    June 2022 · Paper 1

    1 markMagnetic fields and forces
    The whole paper ↗
    June 2022 Paper 1, question 5: The screen is viewed by an observer at point X in the diagram above. A magnetic field is directed at the beam of electrons. This causes the shadow to move upwar

  5. Q10

    November 2021 · Paper 1

    1 markMagnetic fields and forces
    The whole paper ↗
    November 2021 Paper 1, question 10: Which of the following is a unit of magnetic flux? A N C−1 B T m−2 C V s D Wb m2

  6. Q17(a)(i)

    November 2021 · Paper 1

    2 marksMagnetic fields and forces
    The whole paper ↗
    November 2021 Paper 1, question 17(a)(i): Explain which way the coil will rotate. (2)

  7. Q17(a)(ii)

    November 2021 · Paper 1

    4 marksMagnetic fields and forces
    The whole paper ↗
    November 2021 Paper 1, question 17(a)(ii): Show that the moment M on the coil about the pivot, due to the magnetic field, is given by M = BAIN where A is the cross-sectional area of the coil N is the num

  8. Q1(a)

    November 2021 · Paper 3

    3 marksMagnetic fields and forces
    The whole paper ↗
    November 2021 Paper 3, question 1(a): The length l of wire in the magnetic field was 15.5 cm. When the current in the circuit was 4.55 A, the reading on the balance increased by 5.65 g. Calculate th

  9. Q17(a)

    October 2020 · Paper 1

    6 marksElectromagnetic induction and alternating currentMagnetic fields and forces
    The whole paper ↗
    October 2020 Paper 1, question 17(a): Describe how the device can be used as both a generator and an electric motor. (6)

  10. Q7(b)(i)

    October 2020 · Paper 3

    2 marksMagnetic fields and forces
    The whole paper ↗
    October 2020 Paper 3, question 7(b)(i): The magnetic field deflects the electron in the direction up the page. Explain the direction of the magnetic field that would produce this deflection. (2) .

  11. Q7(b)(ii)

    October 2020 · Paper 3

    2 marksMagnetic fields and forces
    The whole paper ↗
    October 2020 Paper 3, question 7(b)(ii): Explain why the electron would travel in a circular path if no other forces acted on it. (2)

  12. Q7(c)(i)

    October 2020 · Paper 3

    2 marksMagnetic fields and forcesElectric fields and potential
    The whole paper ↗
    October 2020 Paper 3, question 7(c)(i): Show that for electrons to be undeflected their velocity must be given by E v = B where B is the magnetic flux density of the magnetic field. (2)

  13. Q7(c)(ii)

    October 2020 · Paper 3

    3 marksMagnetic fields and forcesElectric fields and potential
    The whole paper ↗
    October 2020 Paper 3, question 7(c)(ii): The beam is produced by accelerating electrons through a potential difference of 250 V. The electric field strength is 1.4 × 104 V m−1. The magnetic flux densit

  14. Q9(a)

    October 2020 · Paper 3

    6 marksMagnetic fields and forcesResonance and damping
    The whole paper ↗
    October 2020 Paper 3, question 9(a): Explain these observations. (6)

  15. Q14(a)

    June 2017 · Paper 1

    1 markMagnetic fields and forces
    The whole paper ↗
    June 2017 Paper 1, question 14(a): Add an arrow to the diagram above to show the direction in which the liquid will move. (1)

  16. Q14(b)(ii)

    June 2017 · Paper 1

    2 marksMagnetic fields and forces
    The whole paper ↗
    June 2017 Paper 1, question 14(b)(ii): Hence calculate the force on the salt water. (2) Force =

  17. Q13(c)(i)

    June 2017 · Paper 3

    2 marksMagnetic fields and forcesElectric fields and potential
    The whole paper ↗
    June 2017 Paper 3, question 13(c)(i): Add to the diagram to indicate the directions of the electric field and the magnetic field. (2)

  18. Q13(c)(ii)

    June 2017 · Paper 3

    4 marksMagnetic fields and forcesElectric fields and potential
    The whole paper ↗
    June 2017 Paper 3, question 13(c)(ii): The magnetic flux density applied to the velocity selector is 24.5 mT. Deduce whether this magnetic flux density is suitable to produce a beam of chlorine-35 io

  19. Q13(d)(i)

    June 2017 · Paper 3

    2 marksMagnetic fields and forces
    The whole paper ↗
    June 2017 Paper 3, question 13(d)(i): Explain why the ions travel in a circular path. (2)
All 19 questions on Magnetic fields and forces, as a list
  1. June 2025, Paper 1, Q5 (1 mark): A positron produced a track in a detector, as shown. (Source: © Science Source/SCIENCE PHOTO LIBRARY) Which of the following is the direction of the magnetic fi
  2. June 2024, Paper 1, Q6 (1 mark): A square coil has sides of length l and carries a current I, as shown. The plane of the coil is parallel to a magnetic field of flux density B. Q R magnet magne
  3. June 2023, Paper 1, Q16(a) (6 marks): Describe how this arrangement can lead to the coil rotating. (6)
  4. June 2022, Paper 1, Q5 (1 mark): The screen is viewed by an observer at point X in the diagram above. A magnetic field is directed at the beam of electrons. This causes the shadow to move upwar
  5. November 2021, Paper 1, Q10 (1 mark): Which of the following is a unit of magnetic flux? A N C−1 B T m−2 C V s D Wb m2
  6. November 2021, Paper 1, Q17(a)(i) (2 marks): Explain which way the coil will rotate. (2)
  7. November 2021, Paper 1, Q17(a)(ii) (4 marks): Show that the moment M on the coil about the pivot, due to the magnetic field, is given by M = BAIN where A is the cross-sectional area of the coil N is the num
  8. November 2021, Paper 3, Q1(a) (3 marks): The length l of wire in the magnetic field was 15.5 cm. When the current in the circuit was 4.55 A, the reading on the balance increased by 5.65 g. Calculate th
  9. October 2020, Paper 1, Q17(a) (6 marks): Describe how the device can be used as both a generator and an electric motor. (6)
  10. October 2020, Paper 3, Q7(b)(i) (2 marks): The magnetic field deflects the electron in the direction up the page. Explain the direction of the magnetic field that would produce this deflection. (2) .
  11. October 2020, Paper 3, Q7(b)(ii) (2 marks): Explain why the electron would travel in a circular path if no other forces acted on it. (2)
  12. October 2020, Paper 3, Q7(c)(i) (2 marks): Show that for electrons to be undeflected their velocity must be given by E v = B where B is the magnetic flux density of the magnetic field. (2)
  13. October 2020, Paper 3, Q7(c)(ii) (3 marks): The beam is produced by accelerating electrons through a potential difference of 250 V. The electric field strength is 1.4 × 104 V m−1. The magnetic flux densit
  14. October 2020, Paper 3, Q9(a) (6 marks): Explain these observations. (6)
  15. June 2017, Paper 1, Q14(a) (1 mark): Add an arrow to the diagram above to show the direction in which the liquid will move. (1)
  16. June 2017, Paper 1, Q14(b)(ii) (2 marks): Hence calculate the force on the salt water. (2) Force =
  17. June 2017, Paper 3, Q13(c)(i) (2 marks): Add to the diagram to indicate the directions of the electric field and the magnetic field. (2)
  18. June 2017, Paper 3, Q13(c)(ii) (4 marks): The magnetic flux density applied to the velocity selector is 24.5 mT. Deduce whether this magnetic flux density is suitable to produce a beam of chlorine-35 io
  19. June 2017, Paper 3, Q13(d)(i) (2 marks): Explain why the ions travel in a circular path. (2)

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