Question

When a comb is rubbed on dry hair, it gets charged. This is an example of : (i) Gravitational force (ii) normal reaction force (iii) magnetic force (iv) electrostatic force

February 28, 2024

Answer

electrostatic force

Reason — When a comb is rubbed on dry hair, it gets charged. If this comb is brought near the small bits of paper, opposite charges are induced on the bits of paper and they begin to move towards the comb. The motion of paper bits is due to the electrostatic force of attraction exerted between the unlike charges on the comb and the paper bits.

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