A copper wire has a square cross-section, 2.0 mm on a side. It carries a current of 8 A and the density of free electrons is . What is the drift speed of the electrons?
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A copper wire has a circular cross section with a radius of 1.25 mm. If the wire carries a current of 3.70 A, find the drift speed in mm/s of the electrons in this wire. (Note: the density of charge carriers (electrons) in a copper wire is electrons/)
A copper wire has a circular cross-section with a radius of 1.25 mm.
(a) if the wire carries a current of 3.70 A, find the drift speed of electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 X 1029 electrons/m3.)
(b) For the same wire size and current, find the drift speed of electrons if the wire is made of aluminum with n = 2.11 x 1029 electrons/m3.
A current of 1.0 A exists in a copper wire of a cross-section of 1.0 mm square. Assuming one free electron per atom, calculate the drift speed of free electrons in a wire. the density of copper is 9000 kg / m
