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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

The correct Answer is:
A
`int_(l=oo)^(l=0)=vecE.vec(dl)=V_(0)-V_(oo)=(kq)/r-0`
`=(9xx10^(9)xx1.11xx10^(-10))/0.5~~@V`
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Knowledge Check

  • A ring of radius 0.5 m carries a total charge of 1.0xx 10^(-10)C distributed non uniformly on its circum Ference, producting an electric field vecE . The value of int_(r = oo)^(r = 0) -vecE.vecd r (r = 0 being the centre of the ring)is

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