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Physics (AS & A Level) · Oct / Nov 2024 · Paper 13 · Question 33

9702Resistance and resistivity

A fixed resistor and a diode are combined by connecting them in series. The total potential difference V across the combination is varied and the corresponding current I is measured. Which graph could represent the variation of I with V?

  1. Agraph A
  2. Bgraph B
  3. Cgraph C
  4. Dgraph D

As printed in the paper

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Correct answer: A. graph A

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