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Current and Drift Velocity Relation

How is drift ...

Question

How is drift velocity related to relaxation time

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Solution

Relation of Drift Velocity and Relaxation time,

$v_{d} = - \frac{e E}{m} τ$
where,
v_dis the drift velocity
e charge on an electron
E is the electric field
m is mass of an electron
τ is the relaxation time

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