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A Steady current flows in a metalic cond...

A Steady current flows in a metalic conductor of non uniform cross section. The quantity/quantities which remain constant along the length of the conductor is/are

A

current electric field ad drift speed

B

drift speed only

C

current and drift speed

D

current only

Text Solution

Verified by Experts

The correct Answer is:
D
`i=n eAv_(d)`
Therefore for non-uniform cross-section (different value of A) drift speed will be different at different sections. Only current (or rate of flow of charge) will be same.
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