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Physics (AS & A Level) · Oct / Nov 2017 · Paper 11 · Question 34

9702Potential difference and power

A filament lamp has a resistance of 180 Ω when the current in it is 500 mA. What is the power dissipated in the lamp?

  1. A45 W
  2. B90 W
  3. C290 W
  4. D360 W

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Correct answer: A. 45 W

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