Question

a) Why is a copper wire not used in the filament of a bulb or as a heating element of
heater?​

Answer 1

Answer:

. Its melting point is lower than tungsten and at high temperature the copper will melt. ... Resistivity of tungsten is higher than copper. If we use a thick tungsten wire in the electric bulb , then the resistance will get reduced and to achieve the requisite heat, more energy will be spent

Answer 2

Answer:

Its melting point is lower than tungsten and at high temperature the copper will melt. ... If we use a thick tungsten wire in the electric bulb , then the resistance will get reduced and to achieve the requisite heat, more energy will be spent.

Explanation:

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