Objectives of the Experiment
● Measuring of the Hall voltage as function of the control current at a constant magnetic field: determination of the density and mobility of charge carriers.
● Measuring of the Hall voltage as function of the magnetic field at a constant control current: determination of the Hall coefficient.

How it works
A rectangular strip of n-semiconductor is placed in a uniform magnetic field B, if a control current I flows through the rectangular shaped sample, an electrical voltage (Hall voltage) is set up perpendicular to the magnetic field B and the current I due to the Hall effect.

Features
● Stable magnetic field
     Detachable and can be used for other experiments, individual components, which can widen the application field.
● Open structured n-semiconductor
     Then-semiconductor is connected to the circuit board directly and is clearly seen by students.
● Tunable detector
     Adjustable racks and positioning stages can easily change the position of  the n-semiconductor in the magnetic field i f needed.
● Independent and universal power supply module
     The power supplies which contr l the current and electromagnet are all are all universal and they can be used in other experiments too.

Typical Result

The Hall voltage versus magnetic field at a constant control current.


The Hall voltage versus control current at a constant magnetic field.

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