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Question

Which one of the following heater element is used in electric press

A
Copper wire
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B
Nichrome wire
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C
Lead wire
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D
Iron wire
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Solution

The correct option is B Nichrome wire
Heating appliances generally contain coils of high resistance wire made of nichrome alloy. When these appliances are connected to power supply by insulated copper wires then a large amount of heat is produced in the heating coils because they have high resistance.

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