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A non-conducting ring of radius 0.5m car...

A non-conducting ring of radius 0.5m carries a total charge of `1.11xx1O^(-10)C` distributed uniformly it circumference producing an electric field `oversetrarrE` everywhere in space. The value of the line integral `overset(l=0)underset(l=oo)int-oversetrarrE.oversetrarr(dl)` (l=0 being centre of the ring) in volts is

A

`+2`

B

`-1`

C

`-2`

D

zero

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The correct Answer is:
A
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