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What materials are not good insulators of electricity?

User Myildirim
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2 Answers

3 votes
material in which we applied less external force but electron jumps from conduction band to valence band and their energy band gap is not much high... that's materials are not good insulators of electricity
User Mpalanco
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4 votes
air, glass, plastic, wood, rubber are good insulators 
User Jatin Chauhan
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