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A non-conductiong ring of radius -0.5 m...

A non-conductiong ring of radius ` -0.5 m` camies a total of ` 1. 11 xx 10 ^(-10) C` distributed non-unifrmly on its circumfernce producing an electric field ` vec E ` every where in space . The value of the line integral ` int_(t=infty)^(l=0) -vecE- vec Ed vec l (l=0)` being centre of the ring ) in volts is -

A

` +2`

B

` -1`

C

` -2`

D

zero`

Text Solution

Verified by Experts

The correct Answer is:
A
Potential at the centre of ring ` =- int_((l00))^(l-0) vec E. vec (Dl)` d
` - int_(l=infty)^(l=0) vec E. vec (dl) = (Kq)/R =2` volt.
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