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प्रश्न
Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?
टीपा लिहा
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उत्तर
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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