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

A non-conducting ring of radius `0.5 m` carries a total charge of `1.11xx10^(-10)`C distributed non-uniformly on its circumference producing an electric field E everywhere is space. The value of the integral `int_(l=oo)^(l=0)-E.dI (l=0` being centre of the ring) in volt is

A

`+2`

B

`-1`

C

`-2`

D

zero

Text Solution

Verified by Experts

`V_(0)=K(q)/(R),V_("inifinty")=0`
`underset(t=a)overset(t=0)int-vecE,vecdt=v_(0)0V_("infinity")=(kq)/(r)-0=(9xx10^(9)xx1.11xx10^(-10))/(0.5)=2V`
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