Q7 of 330 Page 26

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

Nichrome wire is used as a heating element because it is very stable, even at high temperatures.


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Which among iron and mercury is a better conductor of electricity?

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

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What is nichrome? State its one use.

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