how to conduct hall effect experiment?

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hall effect. help!

Help,could anyone brief me about the hall effect experiment. how is it conducted .
My lecturer isnt very helpful =(
 

Use a sample of a semiconductor (charge carriers in semiconductors move faster than in metals), a horseshoe magnet and a high-impedance sensitive voltmeter (millivoltmeter is desirable, you may even need a microvoltmeter).
If you run current through your sample in the X direction, the lines of the magnetic field go in the Y direction, then the Hall voltage will appear in the Z direction.
If you do it with p-type and n-type semiconductors, let me know if you really got opposite signs of the Hall voltages on p and n semiconductors.
htg@interia.pl
 

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