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define relaxation time ,collision time, and mean free path,and mathematical relation with each term

define relaxation time ,collision time, and mean free path,and mathematical relation with each term

Grade:12th pass

1 Answers

Vikas TU
14149 Points
4 years ago
Dear Student ,
In the expression for drift velocity,
Vd = 0.5eEτ/m
The term τ is called relaxation time or average collision time. Relaxation time is the average time between two consecutive collisions.
 
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