Question

An
has
electric
conductor
designed to
to carry large corrents
a circular cross section
2.5mm in
diametre
and
14m long
The resistance
b/w its end is 0.104 ohm
what is it resistivity of
material?​

Answer 1

Answer:

An electrical conductor designed to carry large currents has a circular cross section 2.50 mm in diameter and is 14.0 m long. The resistance between its ends is 0.104Ω0.104Ω. (a) What is the resistivity of the material? (b) If the electric field magnitude in the conductor is 1.28 V/m, what is the total current? (c) If the material has 8.5×10288.5×10

28

free electrons per cubic meter, find the average drift speed under the conditions of part (b).