Velocity selector and mass spectrometer
Ions pass crossed E and B (velocity selector, v = E/B) and then bend in a magnetic field: r = mv/qB separates isotopes. Measure masses from the landing positions.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 4. Moving Charges and Magnetism |
| NCERT section | 4.4 (extension) |
| Level | Advanced (JEE / Olympiad) |
| Time | about 12 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: mass spectrometer · velocity selector · isotopes · Lorentz force · Bainbridge
More from this chapter
- Force between parallel current-carrying wires
- 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
- Hall effect: carrier sign, density and mobility
- Helmholtz coils: a uniform magnetic field