Physics (AS & A Level) · Oct / Nov 2022 · Paper 12 · Question 32

The diagrams show two different circuits. [circuit diagrams: left circuit has a cell and one resistor R; right circuit has a cell and two resistors R in series] The cells in each circuit have the same electromotive force (e.m.f.) and negligible internal resistance. The three resistors each have the same resistance R. In the circuit on the left, the power dissipated in the resistor is P. What is the total power dissipated in the circuit on the right?

1. AP/4
2. BP/2
3. CP
4. D2P

As printed in the paper