Question

Explain, why when a plastic comb is rubbed with hair then it attracts tiny pieces of papers.

Answer 1

When a plastic comb is rubbed with dry hair, it becomes negatively charged. The negatively charged comb induces a positive charge on the pieces of paper which are neutral in nature. As we know that the unlike charges attract each other, plastic comb attracts tiny pieces of paper.

Answer 2

$\underline{ \boxed{ \bold{ \rm{ \purple{ \huge{Answer}}}}}} \\ \\ \rm\implies plastic \: comb \: gets \: negative \: charge \\ \rm \: during \: rubbing \: with \: dry \: hair. \\ \\ \implies \rm \: negatively \: charged \: comb \: induces \\ \rm \: positive \: charge \: on \: paper \: pieces. \\ \\ \implies \rm \: and \: we \: know \: that \: positive \: charge \\ \rm \: attracts \: negative \: charge.$