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Physics (AS & A Level) · May / June 2023 · Paper 13 · Question 36

9702Kirchhoff’s laws

Two resistors have a combined resistance of 34 Ω when connected in series. The same resistors have a combined resistance of 7.4 Ω when connected in parallel. What is the resistance of one of the resistors?

  1. A15 Ω
  2. B17 Ω
  3. C23 Ω
  4. D27 Ω

As printed in the paper

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Correct answer: C. 23 Ω

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