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Physics · May / June 2024 · Paper 12 · Question 28

5054Electromotive force and potential difference

Which equation is correct for potential difference (p.d.)?

  1. Ap.d. = voltage × current
  2. Bp.d. = energy / time
  3. Cp.d. = work done / charge
  4. Dp.d. = current / resistance

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Correct answer: C. p.d. = work done / charge

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