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Physics · May / June 2021 · Paper 12 · Question 34

5054Resistance

Which graph shows the relationship between current and voltage for a filament lamp?

  1. Agraph A: current–voltage curve rising with decreasing gradient from origin
  2. Bgraph B: current–voltage curve rising with increasing gradient from origin
  3. Cgraph C: current–voltage curve falling from high current at zero voltage
  4. Dgraph D: straight line through origin

As printed in the paper

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Correct answer: A. graph A: current–voltage curve rising with decreasing gradient from origin

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