High-voltage power lines are a familiar sight throughout the country. The aluminum wire used for some of these lines has a cross-sectional area of 5.00 10-4 m2. What is the resistance of ten kilometers of this wire?

Resistance, R = 0.564 ohms

Explanation:

Area of cross section of the aluminium wire,

Length of the wire, L = 10 km

Resistivity of the aluminium wire is,

The resistivity of a wire is given by the relation as follows :

So, the resistance of the wire is 0.564 ohms.        

the amount of current in the coil

mass and volume are the answers you are looking for