Physics, 22.05.2020 00:13 mandy9386

A copper wire of length L and cross-sectional area A has resistance R. A second copper wire at the same temperature has a length of 2L and a cross-sectional area of (1/2)A. What is the resistance of the second copper wire?

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A copper wire of length L and cross-sectional area A has resistance R. A second copper wire at the s...

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