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Drift speed of electron inside the metal...

Drift speed of electron inside the metallic conductor is `v_(A) = eE^(y) m^(z) tau` (here, `e =` electronic charge, `E =` electric field, `m =` mass of electron and `tau =` time relaxation). Find the value of `y`.

A

`(3)/(2) `

B

`0`

C

`(1)/(2)`

D

`1`

Text Solution

Verified by Experts

The correct Answer is:
d
The unit of LHS `= m^(1)s^(-1)`
The unit of RHS
`="coulomb"(("newton")/("colomb"))^(1) ("kilogram")^(2)("second")`
But The unit of LHS= unit of RHS
Colomb does not come in RHS
`(("colomb"^(1))/("colomb")^(2)) =` unitless
`rArr y = 1`
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