Question

Two spherical conductors A and B of radii 1mm and 2mm are separated by a distance of 5cm and are uniformly charged. If the spheres are connected by a conducting wire then in equilibrium condition, the ratio of the magnitude of the electric fields at the surface of spheres A and B is

(a) 1 : 4 

(b) 4 : 1

(c) 1 : 2 

(d) 2 : 1.

Answer 1

(d) : When the spherical conductors are connected by a conducting wire, charge is redistributed and the spheres attain a common potential V.