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Drift Velocity of Electron

the mobility ...

Question

the mobility of free electrons (charge,mass,relaxation time)in a metal is proportional to

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Solution

$D e a r s t u d e n t, E l e c t r o n m o b i l i t y = \frac{d r i f t v e l o c i t y}{e l e c t r i c f i e l d} d r f i t v e l o c i t y = \frac{I}{n A q} s o, E l e c t r o n m o b i l i t y = \frac{1}{n A q E} s o e l e c t r o n m o b i l i t y i s p r o p o r t i o n a l t o c h a r g e . R e g a r d s$

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