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Physics (AS & A Level) · Oct / Nov 2017 · Paper 11 · Question 38

9702Potential dividers

The circuit diagram shows four resistors of different resistances P, Q, R and S connected to a battery. The voltmeter reading is zero. Which equation is correct?

  1. AP − Q = R − S
  2. BP − S = Q − R
  3. CPQ = RS
  4. DPS = QR

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Correct answer: D. PS = QR

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