1.

The drift velocity of the electrons in a copper wire of length 2m under the application of a potential difference of 100 V is 0.2 ms^(-1). Their mobility is (in m^2 v^(-1) s^(-1))

Answer»

`2.5xx10^(-3)`
`2.5xx10^(-2)`
`1.0xx10^2`
`4.0xx10^(-3)`

ANSWER :A


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