Physics (AS & A Level) · Feb / March 2019 · Paper 12 · Question 33
9702Potential difference and power
Three resistors are connected in parallel across a power supply, as shown. The power dissipated in each of the resistors of resistance 2Ω, 3Ω and 4Ω is P2, P3 and P4 respectively. What is the ratio P2 : P3 : P4?
- A2 : 3 : 4
- B4 : 3 : 2
- C6 : 4 : 3
- D36 : 16 : 9
As printed in the paper
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Correct answer: C. 6 : 4 : 3
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