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  4. When a comb rubbed with dry hair attracts pieces of paper. This is because the

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Q. When a comb rubbed with dry hair attracts pieces of paper. This is because the

KEAMKEAM 2013Electrostatic Potential and Capacitance

Solution:

When a comb rubhed with dry hair attracts pieces of paper. This is because the comb induces a net dipole moment opposite to the direction of field. This happens the field due to charge on comb induces dipole moment in paper by tretching or re-orienting molecules of the dielectric.