Q8 of 330 Page 26

What is nichrome? State its one use.

Nichrome (NiCr, nickel-chrome, chrome-nickel, etc.) generally refers to any alloy of nickel, chromium, and often iron and/or other elements or substances. Nichrome alloys are typically used in resistance wire. They are also used in some dental restorations (fillings) and in other applications.


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Why are copper and aluminium wires usually used for electricity transmission?

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Name the material which is used for making the heating element of an electric iron.

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Give two reasons why nichrome alloy is used for making the heating elements of electrical appliances.

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Why are the coils of electric irons and electric toasters made of an alloy rather than a pure metal?