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A rectangular sample of a metal is 3.6 centimeter wide and 500 µm thick. When it carries a 42 Amp current and is placed in a 0.8 T magnetic field it produces a 6.5 µV Hall emf.
(a) Calculate the Hall field in the conductor;
V/m
(b) Calculate the drift speed of the conduction electrons;
m/s
(c) Calculate the density of free electrons in the metal.
electrons/m3
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