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Question

Nichrome is used in the coils of a heater because of its ____.


A

low resistance and low melting point

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B

high resistance and low melting point

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C

low resistance and high melting point

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D

high resistance and high melting point

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Solution

The correct options are
B

high resistance and low melting point


D

high resistance and high melting point


Nichrome has high resistance and high melting point because of which it produces a lot of heat but doesn't melt, hence it is used as coils of a heater. Unlike other metals, it will not melt while generating large amounts of heat as it is stable, even at high temperatures.


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