A length of copper wire and a 1.00 -meter- long silver havethe same cross-sectional area and resistance at 20 degreesCelsious. Calculate the length of the copper wire.
Resistivities at 20 degrees celsious
copper 1.72x10 to the -8 [power to the negative 8 ]
silver 1.59x 10 to the -8
A= cross-sectional area
[R = L divided by A]