Why are coils of electric toasters and electric irons made of an alloy nichrome rather than a pure metal ?
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Coils of electric toasters and electric irons made of an alloy rather than a pure metal because the resistivity of an alloy is higher than the pure metal. Also at high temperatures, the alloys do not melt easily.
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coil of electric toasters and electric irons made of an alloy nichrome rather than a pure metal because.
(1) resistivity of an alloy is much higher than that of a pure metal.
(2) an alloy does not undergo oxidation (or burn) easily even at high temperature.
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