Physics (AS & A Level) · Feb / March 2022 · Paper 12 · Question 31

In the circuit shown, lamp P is rated 250 V, 50 W and lamp Q is rated 250 V, 200 W. The two lamps are connected in series to a 250 V power supply. Assume that the resistance of each lamp remains constant. Which statement most accurately describes what happens when the switch is closed?

1. ALamp P emits four times as much power as lamp Q.
2. BLamp P emits twice as much power as lamp Q.
3. CLamp Q emits four times as much power as lamp P.
4. DLamp Q emits twice as much power as lamp P.

As printed in the paper