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Question
Give Scientific reasons.
In the electric equipment producing heat e.g. iron, electric heater, boiler, toaster etc, an alloy such as Nichrome is used, not pure metals.
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Solution
In the electric equipment producing heat, such as iron, electric heater, boiler, toaster etc., an alloy such as Nichrome is used, not pure metals because of the following reasons:
- Resistivity of Nichrome is more compared to pure metal.
- Melting point of Nichrome is high as compared to pure metal.
- Nichrome does not get oxidised when heated in air whereas metal does.
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