Answer:
What is the resistance at normal room temperature of 60 m of copper wire having a diameter of 0.64 mm? (r copper = 1.7241 X 10^-8 at 20 C)
2. A semi-circular copper conductor has an inner radius of 60 cm, an axial thickness of 4 cm and a radial thickness of 3 cm. Determine the resistance of this conductor between its two end contact faces at 70 C
