For 10 points—name this effect which can be used to determine whether a current consists of positive or negative charge carriers.
The associated coefficient is approximately given by the mobility times the resistivity. This effect can be demonstrated by applying a voltage to a conducting plate in a magnetic field. The Lorentz force on charges in the plate will cause charges to drift towards one side, producing a transverse voltage. For 10 points—name this effect which can be used to determine whether a current consists of positive or negative charge carriers.
The associated coefficient is approximately given by the mobility times the resistivity.
{Hall} effect [do not accept “quantum Hall effect”]