A-LevelPhysicsD.C. circuits9702/12 · May/June 2018 · Q351 Mark

A cell of constant electromotive force drives a current I through an external resistor of resistance R. The terminal potential difference (p.d.) across the cell is V. [Diagram] When the internal resistance r of the cell increases, what is the effect on V and on I?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Adecreases, decreases

Bdecreases, increases

Cincreases, decreases

Dincreases, increases

✓ Correct answer

A: decreases, decreases

Oracle Prep sorts past-paper questions by topic, so you can drill D.C. circuits and see which topics are most likely to come up next.

Topic: D.C. circuits, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2018 Paper 1 Variant 2, question 35.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content