or making the heating coil of an electric iron?
The heating coil of an electric iron is stretched to double its original length and
worked again. What happens to the quantity of heat produced? Explain the reason
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When the wire is stretched to double the length , the area of cross section gets reduced to half. So when the wire is stretched, the resistance multiplies by four times.
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Explanation:
The heating coil of an electric iron is stretched to
double its original length and worked again. What
happens to the quantity of heat produced? Explain
the reason.
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