Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Why Are Coils of Electric Toasters and Electric Irons Made of an Alloy Rather than a Pure Metal? - Physics

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

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Solution

The resistivity of an alloy is higher than the pure metal. Moreover, at high temperatures, the alloys do not melt readily. Hence, the coils of heating appliances such as electric toasters and electric irons are made of an alloy rather than a pure metal.

Concept: Ohm's Law
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APPEARS IN

NCERT Class 10 Science
Chapter 12 Electricity
Q 4 | Page 209

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