A rectangular sample of a metal is 3.8 cm wide and 600 µm thick. When it carries a 30 Acurrent and is placed in a 0.8 T magnetic field it produces a 6.5µV Hall emf
a) Determine the Hall field in the conductor.
b) Detrmine the drift speed of the conduction electrons.
c) Determine the density of free electrons in the metal.