Question

why we have not seen wire made of coal?​

Answer 1

Answer:

Explanation: They are allotrope of the carbon so they are good conductor of the electricity but they do not use in the electric wire. Graphite and coal are very soft in nature, brittle and also not malleable that is the reason they are not selected for the electric wire.

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Answer 2

Answer:

because coal is not ductile so it cannot be drawn into thin wires