Question

alloys are used in electrical heating device rather than pure metal .give two reasons for this statement ?

Answer 1

Reasons for the same are

i.Alloys do not oxidise(burn) readily at high temperature.
ii.Alloy provide high resistivity rather than a pure metal.

Answer 2

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b) The conductors of electric heating devices such as bread toasters and electric irons are made of alloy because

◾resistivity of an alloy is more than that of metals.

◾It produces large amount of heat and do not burn easily.

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