Question 5 ā€” Why nichrome is used - Questions at the end of the chapter - Chapter 4 Class 8 - Electricity: Magnetic & Heating Effects(Curiosity)

Last updated at July 13, 2026 by

Q 5
Question

Nichrome wire is commonly used in electrical heating devices because it:

  • (i) is a good conductor of electricity.
  • (ii) generates more heat for a given current.
  • (iii) is cheaper than copper.
  • (iv) is an insulator of electricity.

šŸ”— Concept: 4.2 Does a Current Carrying Wire Get Hot?

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(ii) It generates more heat for a given current.

Explanation

  • Nichrome has high resistance.
  • High resistance makes more heat for the same current.
  • So it is used in heating devices.
High resistance makes nichrome good for heating.
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