Physics · May / June 2022 · Paper 12 · Question 35

When the flash on a camera is used, a charge of 1.5 C flows for 0.0030 s through the flash lamp. The average voltage across the flash lamp is 3600 V. What is the electrical energy supplied to the flash lamp and what is the average power supplied?

1. Aenergy / J: 2400, power / W: 7.2
2. Benergy / J: 2400, power / W: 800 000
3. Cenergy / J: 5400, power / W: 16.2
4. Denergy / J: 5400, power / W: 1.8 × 10^6

As printed in the paper