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A circular copper ring of radius r, plac...

A circular copper ring of radius r, placed in vacuum, has charge q on it. The electric field intensity at the centre of the ring is `E_(1)`. The electric field intensity on the axis of the ring at a distance x from its centre is `E_(2)`. The value of `E_(2)` will be maximum when `x=x'`
What is the value of `E_(1)`?

A

0

B

`qxxpi r^(2)`

C

`qxx2pir^(2)`

D

`q/(r^(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
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