A rectangular sample of a metal is 3.5 cm wide and 475 µm thick. When it carries a 42 A current and is placed in a 0.8 T magnetic field it produces a 6.5 µV Hall emf.
(a) Determine the Hall field in the conductor;
V/m
(b) Determine the drift speed of the conduction electrons;
m/s
(c) Determine the density of free electrons in the metal.
electrons/m3