Question:
The material suitable for making heating element of electric iron is
The material suitable for making heating element of electric iron is
Updated On: Apr 5, 2025
- copper
- nichrome
- silver
- germanium
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The Correct Option is B
Solution and Explanation
Correct answer: nichrome
Explanation:
Nichrome is an alloy of nickel and chromium and is widely used in heating elements like those in electric irons, toasters, and heaters.
Reasons why nichrome is suitable:
- It has high resistivity, which helps it generate heat when current flows through it.
- It has a high melting point, so it can withstand high temperatures.
- It does not oxidize easily even when red hot, ensuring long life and durability.
In contrast:
- Copper and silver are good conductors but have low resistivity, making them unsuitable for heating.
- Germanium is a semiconductor and not suitable for use as a heating element.
Hence, the correct answer is: nichrome.
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