Question

If a charge q is placed at the centre of the line joining two
equal charges Q such that the system is in equilibrium then
the value of q is
(a) Q/2 (b) –Q/2
(c) Q/4 (d) –Q/4

Answer 1

Explanation:

If a charge q is placed at the centre of the line joining two

equal charges Q such that the system is in equilibrium then

the value of q is

(a) Q/2 (b) –Q/2

(c) Q/4 (d) –Q/4