How many Electric potential questions are there for 9702?

This page collects 7 recent Cambridge Physics (9702) past-paper questions tagged to Electric potential. Each links straight to instant marking against the official 9702 scheme.

How are Electric potential answers marked?

Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Electric potential first?

Start with the free Physics lesson on Electric potential, then come back and drill past-paper questions under timed conditions.

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9702 · topic questions

Electric potential

Physics7 questions

7 past-paper questions on Electric potential

9702/42 · October/November 20243 marks
Calculate the charge on the sphere.
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9702/42 · May/June 20243 marks
Two isolated charged metal spheres X and Y are near to each other in a vacuum. The centres of the spheres are 1.2m apart, as…
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9702/41 · October/November 20243 marks
Explain why it is not possible for the total electric potential and the resultant electric field to simultaneously be zero at…
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9702/42 · October/November 20243 marks
Determine an expression, in terms of m, q and V, for the momentum p of an electron in the beam.
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9702/42 · May/June 20242 marks
A proton is held at rest on the line joining the centres of the spheres in (b) at the position where x = 0.60 m. The proton is…
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9702/41 · October/November 20242 marks
State the relationship between electric field and electric potential.
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9702/42 · May/June 20242 marks
Define electric potential at a point.
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Question stems are shortened previews. Open a question to attempt the full version and have it marked.

Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Electric potential (9702) past-paper questions — marked instantly

These are real Cambridge Physics past-paper questions on Electric potential. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9702 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Electric potential 9702 grade boundaries

Frequently asked questions

How many Electric potential questions are there for 9702?: This page collects 7 recent Cambridge Physics (9702) past-paper questions tagged to Electric potential. Each links straight to instant marking against the official 9702 scheme.
How are Electric potential answers marked?: Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Electric potential first?: Start with the free Physics lesson on Electric potential, then come back and drill past-paper questions under timed conditions.