Galvanometer: resistance and figure of merit (half-deflection)
Find G by the half-deflection method and the figure of merit k of a moving-coil galvanometer; see exactly why S = G when R is large.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 3. Current Electricity |
| NCERT section | Practical |
| Level | NEET level |
| 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: galvanometer · half deflection · figure of merit · JEE practical
More from this chapter
- Internal resistance of a cell, combination of cells
- Drift velocity of electrons in a conductor
- 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
- Resistor colour code and series/parallel combinations