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Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 34

9702Practical circuits

A battery is marked 9.0 V. What does this mean?

  1. AEach coulomb of charge from the battery supplies 9.0 J of electrical energy to the whole circuit.
  2. BThe battery supplies 9.0 J of electrical energy to an external circuit for each coulomb of charge.
  3. CThe potential difference across any component connected to the battery will be 9.0 V.
  4. DThere will always be a potential difference of 9.0 V across the battery terminals.

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Correct answer: A. Each coulomb of charge from the battery supplies 9.0 J of electrical energy to the whole circuit.

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