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NEET2016PhysicsCurrent ElectricityActual

On increasing the temperature of a conductor, its resistance increases because the

Options

  1. Arelaxation time increases
  2. Belectron density decreases
  3. Crelaxation time decreases
  4. Drelaxation time remains constant

Correct answer

C. relaxation time decreases

Step-by-step solution

Resistance of a conductor, R= m n e^2 l A where the symbols have their usual meaning. As the temperature increases, the relaxation time decreases.

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