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A potential difference of V applied at t...

A potential difference of `V` applied at the ends of a copper wire of length `l` and diameter `d`. On doubling only `d` drift velocity.

A

Becomes two times

B

Becomes half

C

Does not change

D

Because one fourth

Text Solution

Verified by Experts

The correct Answer is:
C
(c ) Drift velocity `v_(d) = (V)/(rho l n e) , v_(d)` does not depend upon diameter.
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A2Z-CURRENT ELECTRICITY-Section D - Chapter End Test
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