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Physics (AS & A Level) · Feb / March 2016 · Paper 12 · Question 32

9702Resistance and resistivity

Which measurements are taken in order to calculate the resistivity of the metal of a piece of wire?

  1. Ap.d., current, area, length
  2. Bp.d., current, diameter, length
  3. Cresistance, area, length
  4. Dresistance, length, radius

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Correct answer: B. p.d., current, diameter, length

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