Question

When we rub a pen to dry hairs ot will attract paper bits what happed in the place of hairs there is a iron rod and why?

Answer 1

Answer:

when negative charges is created in the comb by rubbing it with haur and picece of paper are exposed to the electric field is created by thr charge the part of paper cliser to the comb will be positively charged due to electromagnetic induction, and the farther would be negatively charged, causing the paper to be attracted to the comb.