Physics
posted by Anonymous .
Aluminum has a resistivity of 2.7*108 Ùm. What would be the resistance of 100 m of aluminum wire with a crosssectional area of 2*104 m2?

2.7*10^8 is the resistivity of Al, in ohmmeters. Call it rho.
The resistance is R = (rho)*length/area
Do the calculation
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