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Hall effect in n-germanium with teslameter
Principle: The resistance and Hall voltage are measured on a rectangular strip of germanium as a function of the temperature and of the magnetic field. From the results obtained the energy gap, specific conductivity, type of charge carrier and the carrier mobility are determined.
Tasks:
1. At constant room temperature and with a uniform magnetic field measure the Hall voltage as a function of the control current and plot the values on a graph (measurement without compensation for error voltage).
2. At room temperature and with a constant control current, measure the voltage across the specimen as a function of the magnetic flux density B.
3. Keeping the control current constant measure the voltage across the specimen as a function of temperature. From the readings taken, calculate the energy gap of germanium.
4. At room temperature measure the Hall Voltage UH as a function of the magnetic flux density B. From the readings taken, determine the Hall coefficient RH and the sign of the charge carriers. Also calculate the Hall mobility mH and the carrier density n.
5. Measure the Hall voltage UH as a function of temperature at uniform magnetic flux density B, and plot the readings on a graph.
| Artikel-Nr. | Artikelbezeichnung |
|---|---|
| P2530201 | Hall effect in n-germanium with teslameter |
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