Question

An electrified pith-ball is brought into contact with an exactly similar unelectrified pith-ball. On being separated and kept 3 cm away from each other in air, they repel each other with a force of 2.5 x 10^ N. Find the original charge on the electrified pith-ball.​

Answer 1

Answer:

10-8Coulamb

Explanation:

both the balls have equal radius

both the balls have equal radius so r1=r2=r

both the balls have equal radius so r1=r2=rboth r in contact ( by wire might be)

both the balls have equal radius so r1=r2=rboth r in contact ( by wire might be) in this condition, we use formula given above⬆⬆