Question

Name any 4 insulators (of electricity)

Answer 1

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$<b>$Insluators:

Insluators are the materials which don't allow electricity to pass through them.

Examples of Insulators:

➡Plastics

➡Wood

➡Papers

➡Bricks

➡Pure water

➡Rubber

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Answer 2

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Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. Some materials (e.g. metals) are harder than others (e.g. plastics, wood).

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