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Physics (AS & A Level) · May / June 2016 · Paper 13 · Question 33

9702Potential difference and power

What describes the electric potential difference between two points in a wire that carries a current?

  1. Athe force required to move a unit positive charge between the points
  2. Bthe ratio of the energy dissipated between the points to the current
  3. Cthe ratio of the power dissipated between the points to the current
  4. Dthe ratio of the power dissipated between the points to the charge moved

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Correct answer: C. the ratio of the power dissipated between the points to the current

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