A charged body can attract a neutral object When you comb your hair on a dry day and bring the comb near bits of paper, the comb attracts the small paper pieces. Explain.

When you comb your hair, it gains electrons from hairs and becomes negatively charged. [In fact, you need not worry much about the sign of the charge]. When the comb is brought close to the pieces of paper, the phenomenon of induction takes place. The edge of the paper closer to the comb becomes positively charged and the further side of the paper piece acquires negative charge. The comb attracts the positive side of the paper and repels the negative side. Overall force on the paper is towards the comb because the positive edge is closer to the comb and experiences a higher force. The force is quite strong. Pieces of paper jump against gravity and cling to the comb. Charge on edges of the paper piece is due to induction. Note: If you comb your hair for a long time all your hairs will stand up and can spark. This happens prominently during dry winter days. [Actually moist air takes away charge from charged bodies]. Due to combing your hairs get charged and repel each other to remain separated from one another.