Q. A comb run through one's dry hair attracts small bits of paper. This is due to

 2304  196 AFMCAFMC 2008Electric Charges and Fields Report Error

Solution:

When a comb runs through one's dry hair, then comb gets charged and when it comes close to paper, it induces opposite charges in paper. The field due to the charges in comb, polarises the atoms in the paper. Finally it attracts the paper.