Give reason : ''Small and light pieces of paper are attracted by comb run through dry hair.''
Give reason : ''Small and light pieces of paper are attracted by comb run through dry hair.''
A comb run through dry hair acquires charge through friction but the paper is not charged. The charged comb 'polarizes' the piece of paper, induces a net dipole moment in the direction of field. Further, the electric field due to the comb is not uniform. In this situation it is easily seen that the paper should move in the direction of the comb.
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