Physics, asked by ashwin12378, 9 months ago

A copper wire has diameter 0.5 millimetre and resistivity of 1.6 into 10 to the power minus 8 ohm metre what will be a length of this wire to make its resistance 10 ohm how much does the resistance change if the diameter is doubled

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Answered by ferozemulani

14

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pls see the attachment

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