Friday, 22 April 2016

There are two charges of +10 and +30 e.s.u. There is a point P between them where the electric field strength is zero. Then the point P.

(a) is midway between them
(b) lies on the line joining them
(c) the unit point charge is in equlibrium
(d) the force acting on the unit charge is equal and opposite

Ans: A

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