9781422275993

Lightning Lightning is the discharge of electricity in the atmosphere. It is an example of static electricity. The particles present inside the cloud rub against each oth- er and get oppositely charged. These clouds are then attracted by other clouds or by the surface of the earth. This causes lightning.

Applications Static electricity is widely used in pollution control plants and smokestacks . The dust particles are giv- en a charge and collected on the filter. It is also used in photocopy machines and while painting cars. The ink and spray that have the charged particles are pasted or copied on the material.

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ELECTRICITY