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Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 36

9702Practical circuits

The circuit shown includes a cell of constant internal resistance and an external resistor R. A student records the ammeter and voltmeter readings. She then connects a second identical external resistor in parallel with the first external resistor. What happens to the ammeter reading and to the voltmeter reading?

  1. Aammeter reading decreases, voltmeter reading decreases
  2. Bammeter reading decreases, voltmeter reading stays the same
  3. Cammeter reading increases, voltmeter reading decreases
  4. Dammeter reading increases, voltmeter reading stays the same

As printed in the paper

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Correct answer: C. ammeter reading increases, voltmeter reading decreases

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