Electrical Energy — Flashcards

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The electricity or charge developed on a body on rubbing with another body is called frictional electricity or static electricity. It often shows up when small bits of paper are attracted to a rubbed …

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Rubbing transfers electrons from one material to another, so the comb becomes charged. The charged comb then attracts light paper bits by electrostatic force.

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He observed that amber rubbed with wool attracts light feathers, dust, lint, and pieces of leaves. This was one of the earliest observations related to electric charge.

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If a metal is held directly by hand, charge leaks through the body to earth. When it is held with an insulating handle like glass or amber, the charge stays on the metal and charging is possible.

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Before rubbing, the pen or balloon did not attract the paper bits. After rubbing, they attracted the paper bits. When the pen was rolled between the palms, it lost the charge and could not attract the…

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Uncharged objects do not have an electric charge imbalance, so there is no electrostatic force between them strong enough to cause attraction or repulsion.

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Like charges repel each other while unlike charges attract each other. A straw rubbed with paper and a glass bottle rubbed with silk acquire different kinds of charge.

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Two different types of charges are produced. Like charges repel each other while unlike charges attract each other.