A copper wire has a diameter of 1.29x10^-3m. It carries a current density of 7.65x10^6A/m^2, which...
A copper wire has a diameter of 1.29x10^-3m. It carries a
current density of 7.65x10^6A/m^2, which is assumed to be uniform
over the cross section.
(a) Calculate the current in the wire.
(b) The copper has a conductivity of 5.8x10^7A/Vm with such a wire
of 1 mile long, determine the resistance of the copper wire.
(c) Determine the potential difference between the two ends of the
wire with the current and resistance.
(d) Determine the field intensity of E in the wire.
Homework Answers
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A copper wire has a diameter of 1.29x10^-3m. It carries a
current density of 7.65x10^6A/m^2, which...
The Blue line is the key answer. A 2.5-mm diameter copper wire carries a 33-A current...
The Blue line is the key answer.
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The Blue line is the key answer.
A 2.5-mm diameter copper wire carries a 33-A current uniform across its cross-section. Determine the magnetic field at the surface of the wire inside the wire. 0.50 mm below the surface.
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