Thermocouple: Seebeck effect, neutral and inversion temperature
Heat the junction of two metals; the thermo-emf rises, peaks at the neutral temperature and reverses at the inversion temperature.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 3. Current Electricity |
| NCERT section | Current electricity |
| 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: thermocouple · Seebeck · neutral temperature · inversion
More from this chapter
- Internal resistance of a cell, combination of cells
- Drift velocity of electrons in a conductor
- Galvanometer: resistance and figure of merit (half-deflection)
- Kirchhoff's laws on circuits
- Metre bridge and Wheatstone bridge
- Ohm's law: V–I characteristics
- Potentiometer: emf comparison, internal resistance
- Resistivity and temperature dependence of a wire