why are coils of electric toasters and electric irons made up of an alloy rather than a pure metal?
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Alloys do not oxidise readily at high temperature
resistivity of an alloy is generally higher than that of it's constituent metals
resistivity of an alloy is generally higher than that of it's constituent metals
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The coils of electric irons and electric toasters are made of an alloy because they have a high resistance which allow them to conduct less amount of electricity. These alloys didn't have any free electrons and hence make them to conduct heat energy.
If we use a pure metal instead of alloys then it will not produce sufficient amount of heat energy as it is a good conductor.
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