Question

Why are alloys used instead of pure metals in electric devices?

Answer 1

Most heating elements use Nichrome 80/20 (80% nickel, 20% chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time. Material beneath this layer will not oxidize, preventing the wire from breaking or burning out."

Pure metals generally do not have such a high resistance or resisit oxidation at high temperatures as well.
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Answer 2

Hello freind
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Alloy are made of various metal and nonmetal that's why alloys can't flow current easily therefore it is known as insulator or bad conductor of electricity and high resistance as comparison to pure metal, while pure metal are good conductor of electricity they can flow current easily that is why to resists the current alloys are used in electric devices

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