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Question
Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?
Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?
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Solution
The resistivity of an alloy is higher than the pure metal. Moreover, at high temperatures, the alloys do not melt readily. Hence, the coils of heating appliances such as electric toasters and electric irons are made of an alloy rather than a pure metal.
The resistivity of an alloy is higher than the pure metal. Moreover, at high temperatures, the alloys do not melt readily. 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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