a non conducting ring of radius 0.5 m carries a total charge of 1.11*10-10 C distributed non uniformly on it's circumference producing electric field E vector everywhere in the space . the value of the line integral ∫ -E. dl ( llower limit =infinity , upper limit = 0) (=0 being at the centre of the ring ) in volts is
A .+2
B. -1
C..-2
D.zero
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2 Answers
1I think the integral is equal to the potential of the ring (with reference to infinity) and is equal to Q/4πεR where Q= charge, and R is the radius.
