Question

Why a copper wire is not used in filament of electric bulb and as a heating element of heater

Answer 1

Answer: Copper wire is not used whereas it's alloy is used in the heating devices.

Explanation:

All alloys of the parent metal have a melting point higher than that metal .

To save the parent metals from being finishing fast

Metals are used in heating devices like heater and electric bulb as a heating element.