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CAT NO: DIDACTICNPS0030
Hall Effect.
When a conductor crossed by current is placed in a magnetic field, a potential difference is developed across the conductor
in the direction perpendicular to the field and to the conductor
itself.
The developed potential is called Hall voltage and this phenomenon is called Hall effect.
A complete setup includes : a variable current source of 20mA, 2 coils and U-shaped magnetic core with yoke fixed onto a base.
The equipment also includes some supports for keeping germanium crystals mounted on PCB.
The set can be completed with power supply unit, a digital multimeter, data logger, and with transverse magnetic field sensor.
TRAINING PROGRAM
determining Hall voltage (of “p” or “n” type)
determining Hall coefficient (of “p” or “n” type)
determining the type of charge carrier (of “p” or “n” type, or not doped)
determining of charge density of charge carriers (of “p” or “n” type)
determining the resistivity of a certain sample (of “p” or “n” type)
determining the mobility of charge carriers (of “p” or “n” type)
determining Hall angle (of “p” or “n” type)
COMPONENTS
Hall effect apparatus
power supply unit
constant current source
flexible leads
TRANSVERSE MAGNETICFIELD PROBE
PERSONAL COMPUTER
POWER SUPPLY UNIT
DIGITAL MULTIMETER
HALL EFFECT APPARATUS
It consists of an electromagnet with U-shaped magnetic core with yoke fixed onto a base.
It also includes some supports for holding the germanium crystal mounted on a PCB, and a magnetic field probe.
Crystal: of “p” type or “n” type Ge, 6 x 4 x 0.5 mm
Dimensions of base: 360 x 180 x 33 mm
Weight: 8.8 kg
CONSTANT CURRENT SOURCE
It is used in the apparatus of variable Hall effect and it includes
on/off switch.
Current: 0-20 mAdc
Resolution: 10 μA
Power: 220V ± 10%, 50 Hz AC
Display: 3 ½-digit LED
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