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What will the wire's resistance be if it is stretched to twice its original length without changing the volume of the wire?

What will the wire's resistance be if it is stretched to twice its original length without changing the volume of the wire?
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What will the wire's resistance be if it is stretched to twice its original length without changing the volume of the wire?

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User Bicentric
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1 Answer

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The resistance of a wire is:
R = ρL/A, where ρ is the resistivity of the material, L is the length of the wire and A is the cross sectional area. If the length is doubled, the resistance of the wire will double.
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User Naros
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