Question

Define mobility and relaxation time of a free electron

Answer 1

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The mobility of a charge carrier is defined as the average velocity with which the free electrons move towards the positive end of a conductor under the influence of an external electric field applied . vd=eEmτ Where , e , m =charge and mass of electron , E = electric field , τ = Relaxation time.

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Answer 2

Answer:

The mobility of a charge carrier is defined as the average velocity with which the free electrons move towards the positive end of a conductor under the influence of an external electric field applied . vd=eEmτ Where , e , m =charge and mass of electron , E = electric field , τ = Relaxation time.