Physics (AS & A Level) · May / June 2022 · Paper 12 · Question 32

The circuit diagrams show two lamps X and Y each connected to a cell. The current in lamp X is 0.50 A and its resistance is 9.6 Ω. The current in lamp Y is 3.0 A and its resistance is 1.2 Ω. What is the ratio \frac{\text{power in lamp X}}{\text{power in lamp Y}}?

1. A0.22
2. B0.75
3. C1.3
4. D4.5

As printed in the paper