Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal?
(N/A) The resistivity of an alloy is generally much higher than that of its constituent pure metals.
Due to this high resistivity,alloys produce more heat when an electric current passes through them.
Furthermore,alloys do not oxidize (burn) or melt readily even at high temperatures.
Therefore,alloys are preferred for heating elements in appliances like electric toasters and electric irons.
Due to this high resistivity,alloys produce more heat when an electric current passes through them.
Furthermore,alloys do not oxidize (burn) or melt readily even at high temperatures.
Therefore,alloys are preferred for heating elements in appliances like electric toasters and electric irons.
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