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A conducting wire of cross-sectional are...

A conducting wire of cross-sectional area `1 cm^(2)` has `3 xx 10^(23)` charge carriers per m3. If wire carries a current of `24 mA`, then drift velocity of carriers is

A

`5 xx 10^(-2)` m/s

B

`0.5 m//s`

C

`5 xx 10^(-3) m //s`

D

`5 xx 10^(-6) m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
`v_(d) = (I)/( "ne A") = ( 24 xx 10^(-3) ) /( 3 xx 10^(23) xx 1.6 xx 10^(-19) xx 10^(-4))`
`= 5 xx 10^(-3) m//sec`
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