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Current Electricity: Temperature Coefficient MCQ

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Temperature CoefficientMediumQuestion 31608

Question

For a metallic conductor, as temperature increases, resistance:
  1. A
    Decreases
  2. B
    Increases
    Correct
  3. C
    Stays constant
  4. D
    First increases then decreases

Correct answer

Increases

Explanation

In metals, increased thermal vibration scatters electrons more. R(T) = R₀(1 + αT). For semiconductors, R decreases with temperature.

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