Question

Alloys are used in electrical heating device rather than pure metals? Give Reasons?

Answer 1

For a heating element, you want to use a metal with a high electrical resistance, and a high melting point (obviously). If this heating element is going to be exposed to air and/or water, it also needs to be corrosion resistant. Nichrome - Wikipedia, which is an alloy of nickel and chromium, is usually a good choice.

Alloys generally have higher resistance than the pure metals that they are made of, because the alloy disorder of the atoms causes additional electron scattering.

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.

I hope, this will help you___❤❤

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