Define drift velocity and derive an expression for it
Asked by admin @ in Physics viewed by 315 People
Define drift velocity and derive an expression for it
Answered by admin @
Drift velocity is defined as the average velocity with the free electrons get drifted towards the positive end of the conductor under the influence of an external electric field applied..
E =V/l...
... ...
F= -e E..
... ...
a = -eE/m..
... ... ...
v1 =u1+a .t1. ..(t1=time elapsed t is tau..)
similarly...
v2. v3. v3 VN ...
drift velocity = -eE t/m....
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