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Physics (AS & A Level) · May / June 2026 · Paper 12 · Question 37

9702Kirchhoff’s laws

A battery of electromotive force (e.m.f.) 18.0 V and negligible internal resistance is connected to a network of three fixed resistors as shown. The current in the battery is 0.108 A. What is the resistance of resistor X?

  1. A125 Ω
  2. B167 Ω
  3. C250 Ω
  4. D500 Ω

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Correct answer: C. 250 Ω

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