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

User Bicentric
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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.
User Naros
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