Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12

Why Are Coils of Electric Toasters and Electric Irons Made of an Alloy Rather than a Pure Metal? - Physics

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

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 (V = IR)

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Q 4 Q 3 Q 5. (a)

Chapter 12: Electricity - Intext Questions [Page 209]

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NCERT Class 10 Science

Chapter 12 Electricity
Intext Questions | Q 4 | Page 209

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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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