(1) Two particles, each of mass m and carrying charge Q, are separated by some distance.If they are in equilibrium under mutual gravitational and electrostatic forces,then Q/m (in C/Kg) is of the order of

(a) 10^-5

(b) 10^-10

(c) 10^-15

(c) 10^-20

Nimish Singh , 11 Years ago

Grade 11