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Why do dry hair stand on when combed with a plastic comb ? What kind of charge is acquired by ebonite when rubbed with fur ? What kind of charge is acquired by fur when it is rubbed over ebonite ? What type of charge is borne on clouds facing the earth ? Is dry air a conductor or an insulator ?

Why do dry hair stand on when combed with a plastic comb ?
What kind of charge is acquired by ebonite when rubbed with fur ?
What kind of charge is acquired by fur when it is rubbed over ebonite ?
What type of charge is borne on clouds facing the earth ?
Is dry air a conductor or an insulator ?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 7235 Points
17 days ago
Dry hair stand when combed with a plastic comb because they get charged. When rubbed with fur ebonite gets a negative charge. When fur is rubbe^ with ebonite, fur acquires positive charge. Normally, the layers of cloud facing the earth get negatively charged. Dry air is a bad conductor (or insulator) of electricity.

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