Question

A charged particle having drift velocity of `7.5xx10^(-4)ms^(-1)` in electric field of `3xx10^(-10)Vm^(-1)` mobility is
A. `6.5xx10^(6)m^(2)V^(-1)s^(-1)`
B. `2.5xx10^(6)m^(2)V^(-1)s^(-1)`
C. `2.5xx10^(4)m^(2)V^(-1)s^(-1)`
D. `6.5xx10^(4)m^(2)V^(-1)s^(-1)`

Answer 1

Correct Answer - B
Mobility of charged particle
`mu=(|v_(d)|)/(E)=(7.5xx10^(-4))/(3xx10^(-10))=2.5xx10^(6)m^(2)V^(-1)s^(-1)`