Question

When a plastic comb is rubbed on dry hair, which of the following occurs?

Options

• Protons transfer from the hair to the comb

• Electrons transfer from the comb to the hair — the comb becomes positive and the hair becomes negative

• No charge transfer takes place because hair is a conductor

• Electrons transfer from the hair to the comb — the hair becomes positive and the comb becomes negative

Answer 1

Rubbing a plastic comb on dry hair transfers electrons from the hair to the comb. The comb, gaining electrons, becomes negatively charged, while the hair, losing electrons, becomes positively charged.