Hall Effect Apparatus
Product Code : EL-PLE-13140
Eduscope India is a leading Hall Effect Apparatus
Quick Answer: Hall Effect Apparatus lets students measure the Hall Effect in a GaAs semiconductor chip using Helmholtz coils and a reversing-current control unit.
An n-type GaAs (gallium arsenide) semiconductor chip is mounted on a two-axis mechanical traverse, letting it be positioned accurately within a magnetic field generated by a pair of 75mm Helmholtz coils, which produce a central magnetic induction of 11.25mT at 0.5A of coil current. Relay-controlled reversing switches let both the magnet current and the Hall driving current be reversed in turn, the standard technique for identifying and cancelling out systematic measurement errors. A control unit supplies the magnet current, adjustable over 0-0.5A, and the Hall driving current through the chip, adjustable over 0-3mA, with 3-1/2 digit meters for reading both current and voltage — letting students explore this Hall effect apparatus India setup to characterise both the semiconductor sample and the surrounding magnetic field, and even plot the field's spatial profile using the traverse. First described by Edwin Hall in 1879, the Hall Effect is the working principle behind magnetic field sensors used widely across instrumentation today. The complete board is supplied with a metal storage case.
| Specification | Value |
|---|---|
| Semiconductor | n-type GaAs chip on 2-axis traverse |
| Helmholtz coils | 75mm effective diameter |
| Magnetic induction | 11.25mT at 0.5A coil current |
| Magnet current range | 0-0.5A |
| Hall driving current range | 0-3mA |
| Readouts | 3-1/2 digit (current & voltage) |
It is part of EduScope India's Physics Lab Equipment range, and pairs well with the Deflection Magnetometer and a Multimeter, Digital for electricity and magnetism coursework.
