plumiElectric potential and energy: OCR A‑Level Physics A questions
Every OCR A-Level Physics A exam question on 6.2.4 Electric potential and energy, 2016–2025, with its mark scheme and examiner’s report.
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Calculations
Q22(b)(i)
The whole paper ↗![June 2024 Paper 2, question 22(b)(i): Assume the cloud acts as a point charge. Calculate the magnitude of the electrical potential V between the cloud and the surface of the Earth. V = V [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55602-jun24-22-bi-qp.webp?v=3)
Q23(b)(i)
The whole paper ↗![November 2020 Paper 2, question 23(b)(i): Show that the magnitude of the total charge Q on the dome is 2.5 × 10−7 C. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55602-nov20-23-bi-qp.webp?v=3)
Q23(b)(i)
The whole paper ↗![June 2018 Paper 2, question 23(b)(i): Explain what happens to the electric potential energy of the proton-nucleus system. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55602-jun18-23-bi-qp.webp?v=3)
Q23(b)(ii)
The whole paper ↗![June 2018 Paper 2, question 23(b)(ii): Calculate the minimum distance R between the proton and cobalt nucleus. R = m [3]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55602-jun18-23-bii-qp.webp?v=3)
Q20(b)
The whole paper ↗![June 2017 Paper 2, question 20(b): Define electric potential at a point in space. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55602-jun17-20-b-qp.webp?v=3)
Q20(c)(i)
The whole paper ↗![June 2017 Paper 2, question 20(c)(i): Show that the charge Q on the surface of the sphere is 8.3 × 10−9 C. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/h55602-jun17-20-ci-qp.webp?v=3)
All 10 questions on Electric potential and energy, as a list
- June 2024, Paper 2, Q22(b)(i) (2 marks): Assume the cloud acts as a point charge. Calculate the magnitude of the electrical potential V between the cloud and the surface of the Earth. V = V [2]
- June 2023, Paper 2, Q13 (1 mark): In the Rutherford scattering experiment alpha particles are directed at a gold foil. Gold nuclei have 79 protons. The distance of closest approach is 47.0 fm. W
- November 2020, Paper 2, Q13 (1 mark): The electric potential at a distance R from the centre of a charge +Q is + 40 V. +40 V +Q R What is the potential at the point P for the arrangement of the char
- November 2020, Paper 2, Q23(b)(i) (2 marks): Show that the magnitude of the total charge Q on the dome is 2.5 × 10−7 C. [2]
- June 2018, Paper 2, Q8 (1 mark): An isolated metal sphere is charged using a power supply. Which single quantity can be used to determine the capacitance of the sphere? A The diameter of the sp
- June 2018, Paper 2, Q13 (1 mark): An electron is released at a distance r from the surface of a positively charged sphere. It is attracted towards the centre of the sphere and moves until it tou
- June 2018, Paper 2, Q23(b)(i) (1 mark): Explain what happens to the electric potential energy of the proton-nucleus system. [1]
- June 2018, Paper 2, Q23(b)(ii) (3 marks): Calculate the minimum distance R between the proton and cobalt nucleus. R = m [3]
- June 2017, Paper 2, Q20(b) (1 mark): Define electric potential at a point in space. [1]
- June 2017, Paper 2, Q20(c)(i) (2 marks): Show that the charge Q on the surface of the sphere is 8.3 × 10−9 C. [2]
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