Physics (AS & A Level) · May / June 2020 · Paper 12 · Question 38

In the circuit shown, X is a variable resistor whose resistance can be changed from 5.0 Ω to 500 Ω. The electromotive force (e.m.f.) of the battery is 12.0 V. It has negligible internal resistance. What is the maximum range of values of potential difference across the output?

1. A1.3 V to 11.1 V
2. B1.3 V to 12.0 V
3. C1.5 V to 11.1 V
4. D1.5 V to 12.0 V

As printed in the paper