In the application of electrical and magnetic circuits, the heater element in an electric iron is manufactured by using ________.

Question

Question

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SSC JE Electrical 10 Oct 2023 Shift 2 Official Paper-I

Answer 1

The correct answer is option 4.

The heater element in an electric iron is manufactured by using nichrome.
Nichrome is an alloy consisting of 80% of Nickel and 20% of Chromium.
The melting point of Nichrome is 1400º C with high resistance which makes this element best for use as a heating element.
When heated for the first time, it forms an adherent layer of chromium oxide.
Because the material beneath this layer will not oxidize, the wire will not break or burn out. As a result, nichrome is used as a heating element.