Question

alloys are used as residtant materials instead of metals give reason

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Answer 1

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. Nichrome - which is an alloy of nickel and chromium, is usually a good choice.

Answer 2

Answer:

the main purpose of resistance is to control the flow of current in a system.

the main purpose of resistance is to control the flow of current in a system. Metals have high conductivity, thus we need a material that allows a controlled flow of current.

the main purpose of resistance is to control the flow of current in a system. Metals have high conductivity, thus we need a material that allows a controlled flow of current.That's why we made alloys that show multiple properties other than resistance.