Question

Why is graphite not used for making electric cable even though it is a good conductor of electricity.

Answer 1

it's fragile and works as a resistor more than a conductor. as it is stiff and brittle, it cannot be used in wires, which require flexibility. as it is a carbon compound, it is used in resistors, which regulate electrical flow. take a pencil lead, attach a wire to one side, hook that up to a battery, then take the other battery terminal, attach that to a small light bulb, and then run the wire from the bulb to the pencil lead. as you slide the wires further apart, the bulb will dim.

Answer 2

Graphite is not used for making cablr due to the following reasons :-

it is brittle and hence the wire would not be able to be coiled

it has high resistivity i.e. it acts more as a resistor than as a good conductor