Question

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

Answer 1

Hi mate

Here is ur answer...

1. Alloys have high electrical resistivity than pure metal.

1. Alloys have high electrical resistivity than pure metal.2. Alloys do not undergo oxidation easily even at high temperature.

1. Alloys have high electrical resistivity than pure metal.2. Alloys do not undergo oxidation easily even at high temperature.So, elements of electrical heating devices are made of alloys rather than a pure metal. That too 80℅ Nichrome are used , whereas 20℅ chromium is used.

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