Hall-Effect : Determination of carrier concentration
Objective
Apparatus
Experiment
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Objective
To determine the Hall voltage developed across the
sample material.
To calculate the Hall coefficient and the carrier
concentration of the sample material.
Two solenoids, Constant current supply, Four probe, Digital
gauss meter, Hall effect apparatus (which consist of Constant
Current Generator (CCG),digital milli voltmeter and Hall
probe).
Constant Power Supply
Electromagnet
Digital Gauss Meter
Hall Probe
Probe1
Ammeter
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Instructions
Select the "Magnetic Field vs Current" procedure from
'Select Procedure' dropdown menu.
Click on the 'Insert Hall Sensor' button to insert the
sensor into the electromagnet.
Click on the 'Add to Table' button to add current and
magnetic field values to the table.
Click on the 'Observation' button to view the table.
Click on the 'IBgraph' button to view the graph.
Change the procedure to "Hall Effect" to calculate the
hall voltage.
Click on the 'Insert Probe' button to insert the probe
into the electromagnet.
Select the material from the "Select the material"
dropdown menu.
Adjust the current using 'Current' slider.
Click on the 'Add to Table' button to add hall voltage and
magnetic field values to the table.
Click on the 'Observation' button to view the table.
Click on the 'Plot a graph' button to view the V/B graph.
Clear the observation table before changing the material.
Click on the "Show Result" button to view the result
