Question

What happens when the plastic comb is rubbed with a piece of cloth?

Answer 1

the plastic comb gains a negative charge and the hair gets positively charged.
because of this plastic comb attracts small bits of paper

Answer 2

Answer:

When a wool cloth is rubbed on a plastic comb, the cloth loses electrons and the comb gains them. The comb now has a negative charge and the wool has a positive charge.