Experiment

Hall Effect is an instrument to determination of mobility of charge carriers.

Apparatus Supply

1.  ELECTROMAGNET – Made of soft iron, specially design for Hall Effect experiments, mounted on a wooden base for stable performance, Pole pieces :- 50 mm dia. tapered type Field :- 7.5 kg at 10 mm. air gap,           Energizing Coils :- Two coils each with total resistance of  9 ohms (approx).
2. DIGITAL POWER SUPPLY FOR ELECTROMAGNET – 0 – 6 Amp, 60 V digital display, It is a constant current power supply, with long time operation and continuously variable current.
3. DIGITAL GAUSS METER:      Range: 0-2 K Gauss & 0-20 K Gauss, Resolution: 1 Gauss at 0-2 K Gauss Range, Accuracy: ± 0.5%, Display: 3 ½ Digit, 7 Segment LED, Power: 220 V, 50 Hz Special Feature: Indicates the direction of the Magnetic field.

• Gauss Probe

1. Constant Current Power Supply:

(i) Digital Mill voltmeter Range: 0-200 mV/2000 mV (100µV minimum) Accuracy : ±0.1% of reading ±1 digit

(ii) Digital Mill Ammeter Range : 0-10 mA/20 mA Accuracy : ±0.1% of reading ±1 digit
(iii) Constant Current Power Supply Current : 0-20 m A Resolution : 10µA Accuracy : ±0.2% of the reading ±1 digit
Load regulation : 0.03% for 0 to full load
Line regulation : 0.05% for 10% variation

1. HALL CRYSTALS:

• N type Crystal with wooden stand
• P type Crystal with wooden stand (Optional)

1. Heating Oven: