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Science and Technology - General Knowledge Questions
Which material is used in electric heater
A)
Iron
B)
Brass
C)
Tungsten
D)
Nichrome

Correct Answer :   Nichrome

Nichrome: Most resistance wire heating elements usually use nichrome 80/20 (80% Nickel, 20% Chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.

Published On : June 11, 2021
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