Electrical wires have a coating of insulating material. The material, generally used is (a) sulphur (b) graphite (c) PVC (d) none of these

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17/04/2021 12:39 pm

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Rohit1998

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Electrical wires have a coating of insulating material. The material, generally used is

(a) sulphur

(b) graphite

(d) none of these

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17/04/2021 12:40 pm

Nupoor1234

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