Hall effect: carrier sign, density and mobility
Pass a current through a slab in a magnetic field; the Hall voltage reveals whether carriers are electrons or holes and their density.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 4. Moving Charges and Magnetism |
| NCERT section | Magnetism |
| Level | Advanced (JEE / Olympiad) |
| Time | about 14 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: Hall effect · carrier density · semiconductor · Lorentz force
More from this chapter
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- Biot–Savart law: field of a straight wire, circular loop and solenoid
- Charged particle in uniform E and B fields
- Torque on a current loop and magnetic moment
- Cyclotron
- Galvanometer to ammeter and voltmeter
- Helmholtz coils: a uniform magnetic field
- Moving coil galvanometer, ammeter and voltmeter conversion