A hollow copper wire with an inner diameter of 1.4 mm and an outer diameter of 2.6 mm carries a current of 2.50 amps. Copper has an electron density of 8.5x1028 m-3 and a conductivity of 6.0x107 (ohm m)-1.
a. What is the electron drift speed in the wire?
b. What is the current density in the wire?
c. What is the electric field in the wire?
The Attempt at a Solution
I believe I have the correct answers but was just curious if someone could double check me!