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Find the magnitude of the electric field...

Find the magnitude of the electric field at a point 4 cm away from a line charge of density `2 xx 10^(-6) C m^(-1)`.

A

`4 xx 10^(5) NC^(-1)`

B

`2 xx 10^(6) NC^(-1)`

C

`8xx10^(7) NC^(-1)`

D

`12 xx 10^(7) NC^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
For a charged cylinder
`E=( lambda)/( 2pi epsi_(0)r)=( 4 xx 10^(-6) xx 18xx10^(9))/(3.6 xx 10^(-2))`
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