Question
A non -conducting ring of radius 0.5m carries a total charge of 1.11 x 10-10 C distributed non-uniformly on its circumference producing on its circumference on the electric field. E everywhere is space.
The value of the line integral (l = 0 being centre of ring) in volts is
+2
-1
-2
zero
Solution
A.
+2
From the definition of potential difference = potential difference at infinity and at centre of ring = Vcentre -Vinfinity
But by convention Vinfinity = 0 and Vcentre =
=
