1.

Which element is used in electric heater?A) CopperB) PlatinumC) TungstenD) Nichrome

Answer»

Correct Answer is: D) Nichrome

Heating coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).



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