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Two point charges q and -q are separated...

Two point charges `q` and `-q` are separated by the distance `2l`. Find the flux of the electric field strength vector across a circle of radius `R`.

A

`(q)/(2epsilon_(0))`

B

`(q)/(epsilon_(0))`

C

`(2q)/(epsilon_(0))`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C
`phi=(q)/(2epsilon_(0)(1-cos60)^(2))rArr phi=(q)/(2epsilon_(0))`
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