A wire has a cross sectional area of 4.00 mm2 and is stretched by 0.100 mm by a certain force. How far will a wire of the same material and length stretch if its cross-sectional area is 8.00 mm2 and the same force is used to stretch it

Explanation:

Given

Cross-sectional area of wire

Extension of wire

Extension in a wire is given by

where,

for same force, length and material

Divide (i) and (ii)

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explanation:

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