Question

When combing one's hair, the comb becomes positively charged. What happens to the hair being combed?

A.
It stays uncharged.

B.
It becomes positively charged.

C.
It becomes negatively charged.

D.
It loses electrons.

Answer 1

When a comb becomes positively charged, it means that it has lost electrons. Since electric charge is conserved, the electrons that have left the comb must have moved to another object—in this case, the hair. When the hair gains these electrons, it becomes negatively charged.

Therefore, the correct answer is:

C. It becomes negatively charged.