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

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 :- 50mm dia. tapered type Field :- 7.5kg at 10mm. air gap, Energizing Coils :- Two coils each with total resistance of  9 ohms (approx).

2. DIGITAL POWER SUPPLY FOR ELECTROMAGNET - 0 - 6Amp, 60V 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: 1Gauss at 0-2 K Gauss Range, Accuracy: ± 0.5%, Display: 3 ½ Digit, 7 Segment LED, Power: 220V, 50Hz Special Feature: Indicates the direction of the Magnetic field.

• Gauss Probe 

4. Constant Current Power Supply:

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

(ii) Digital Mill Ammeter Range : 0-10mA/20mA Accuracy : ±0.1% of reading ±1 digit

(iii) Constant Current Power Supply Current : 0-20mA 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

5. HALL CRYSTALS:

• N type Crystal with wooden stand

• P type Crystal with wooden stand (Optional)