# Hall Effect Lab (Germanium SC) Without Hall Effect Sensor

**1. Lab Method**

The method for determining the Hall Effect is as follows:

This is the method that I was instructed to follow:

- A current source was connected across a germanium wafer

- The voltage across the wafer (in the direction of current) was measured with a multimeter

- A magnetic field was introduced

- The voltage, in the direction of current was measured again

- The difference in measured voltage 1 and measured voltage 2 was assumed to be the approximate value of the Hall Voltage

- This method was repeated for both p-type and n-type germanium semiconductors

**2. Required Calculations**

From these measurement the hall coefficient, magnetic field strength, the type of charge carrier and the charge density of the semiconductor need to be calculated

**3. The attempt at a solution**

The problem I’m having is that most reports and methods I’ve found that show equations for the above quantities are for a Hall Effect experiment that uses a Hall sensor to measure the magnetic field strength. This is the main problem I’m having because if I had a value for B I would be able to calculate all of the other values. Is there a way to calculate B with the measurements that I have?

Any help would be appreciated

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