Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 36

Four resistors of resistance R, 2R, 3R and 4R are connected to form a network. A battery of negligible internal resistance and a voltmeter are connected to the resistor network as shown. [circuit diagram] The voltmeter reading is 2 V. What is the electromotive force (e.m.f.) of the battery?

1. A2 V
2. B4 V
3. C6 V
4. D10 V

As printed in the paper