Question

a] Why are the coils of electric toasters and electric irons made of an alloy rather
than a pure metal.
bị Why does the cord of an electric heater not glow while the heating element
does?
GM​

Answer 1

Answer:

Coils of electric toasters and electric irons made of an alloy rather than a pure metal due to the following reasons:

The resistivity of an alloy is higher than the pure metal.

At high temperatures, the alloys do not oxidize.

Alloy does not melt readily and get deformed.

Alloys have a low-temperature coefficient of resistance

Hence, the coils of heating appliances such as electric toasters and electric irons are made of an alloy rather than a pure metal.

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