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A wire has non-uniform cross-section as ...

A wire has non-uniform cross-section as shown in fig. steady current flows through it. The drift speed of electrons at point `P` and `Q` is `v_(P)` and `v_(Q)`

A

`v_(P) = v_(Q)`

B

`v_(P) lt v_(Q)`

C

`v_(P) gt v_(Q)`

D

data insufficient

Text Solution

Verified by Experts

The correct Answer is:
C
(c ) `v_(d) = (i)/(A n e)` As `A uarr` so `v_(d) darr implies v_(P) gt v_(Q)`
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