Physics (AS & A Level) · Oct / Nov 2021 · Paper 12 · Question 37

A battery of negligible internal resistance is connected to three resistors, as shown. The potential difference across each resistor is 2 V. The current from the battery is 0.4 A and the current through one of the resistors connected in parallel is 0.3 A. What is the current through the other resistor connected in parallel and what is the electromotive force (e.m.f.) of the battery?

1. Acurrent 0.1 A, e.m.f. 4 V
2. Bcurrent 0.3 A, e.m.f. 4 V
3. Ccurrent 0.1 A, e.m.f. 6 V
4. Dcurrent 0.3 A, e.m.f. 6 V

As printed in the paper