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In a Hall-effect experiment, a current of 3.0 A sent lengthwise through a conductor 0.83 cm wide,
3.0 cm long, and 9.3 μm thick produces a transverse (across the width) Hall potential difference of
9.7 μV when a magnetic field of 1.5 T is passed perpendicularly through the thickness of the
conductor. From these data, find (a) the drift speed of the charge carriers and (b) the number
density of charge carriers.
(a) Number
(b) Number
i
i
!
!
Units
Units
m/s
m^-3 or 1/m^3

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