Question

A girl rubs a ball pen plastic refill against a polythene sheet and brings it near some small pieces of paper.

The pieces of papers will

the answer given in the solution is that the pieces of paper get attracted.

But how can rubbing plastic with plastic(polythene) charge it?

they r the same material.

Answer 1

because electrostatic force take place

Answer 2

Answer:-

When we rub ballpen refill with polythene, it acquires a small electric charge. On bringing the charged ballpen refill close to small pieces of paper, the bits of paper are attracted to it. A charged plastic refill can attract bits of paper.

Hope it's help You❤️