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A wire of resistivity P is …

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A wire of resistivity P is stretched to double of its length. Find its new resistance and resistivity

Posted by Manju Singh 5 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Samraat Sahil Verma 5 years, 3 months ago

Say initial Resistance is R Length of wire is doubled by stretching so, New Resistance,R'=n^2×R, Where n=2(doubled) So R'=2^2×R=4R Resistivity will remain same because material is same

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