Physics

Problem

Two similar very small conducting spheres having charges

40 \mu\text{C}

and

-20 \mu\text{C}

are some distance apart. Now they are touched and kept at the same distance. The ratio of the initial to the final force between them is: (a)

8 : 1

(b)

4 : 1

(c)

1 : 8

(d)

1 : 1