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Physics (AS & A Level) · Oct / Nov 2023 · Paper 11 · Question 34

9702Practical circuits

Which statement about the electromotive force (e.m.f.) of a cell is always correct?

  1. AThe e.m.f. is the energy converted from electrical to other forms in the cell.
  2. BThe e.m.f. is the energy provided by the cell per unit charge passing through it.
  3. CThe e.m.f. is the potential difference across the internal resistance of the cell.
  4. DThe e.m.f. is the potential difference across the terminals of the cell.

As printed in the paper

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Correct answer: B. The e.m.f. is the energy provided by the cell per unit charge passing through it.

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