Question

why are coils of electric toasters and electric iron made of an alloy rather than a pure metal​

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.

I hope it hleps you

Answer 2

Answer:

This is because alloys have more electrical resistivity, than a pure metal or its constituent metals. They do not oxidize readily at high temperatures. They can remain in the solid state even at high temperatures.  These are the main reasons for usage of alloys in the making of coils for electric toasters and electric iron, than a pure metal.

Explanation: