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The goals of this experiment are to gain a better understanding of the Hall effect, and to learn basic use of computers as a data aquisition tool in physics experiments.
In this lab, the Hall effect is generated by passing a current through a Germanium semiconducter in the presence of a uniform magnetic field generated by a Helmholz coil. This generates a current (Hall current) in the semiconductor which is transverse to the initial current. The current, magnetic field intensity and Hall voltage are fed into a computer via an ADC/DAC card. The computer then calculates the Hall coefficient, number density of charge carriers, and ratio of charge carrier density to atomic density.
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