Question

A non-conducting ring of radius $0.5\ m$ carries a total charge of $1.11\times10^{-10}C$ distributed non-uniformly on its circumference producing on its circumference on electric field $E$, everywhere in space.
The value of line integral $∫_{l=∞}^{l=0} (-E×dl)$ ($l=0$ being centre of ring) in volts is

• A. +2
• B. -1
• C. -2
• D. Zero

Answer 1

Answer: (B)

-1

Answer 2

The correct option is (B): -1.