Tangent Galvanometer
Product Code : EL-PLE-13183
Eduscope India is a leading Tangent Galvanometer
Quick Answer: Tangent Galvanometer uses a wound coil and a compass needle to turn the tangent law into a working, adjustable-turns measurement of electric current.
The Tangent Galvanometer is a demonstration instrument that lets a class watch electricity and magnetism interact in real time, turning a simple wound coil and a compass needle into a working measurement of electric current. It is part of our physics lab equipment India range, one of the electronic lab instruments India colleges use for hands-on electromagnetism teaching.
How It Works
Two coils of insulated wire, wound with 5 and 10 turns around a 6" diameter plastic ring, stand upright on the instrument's base. Three binding posts let an instructor wire the coils into a single loop offering five, ten, or fifteen turns, so the same setup can be reconfigured for different trials without rewinding anything. A magnetic compass placed at the center of the ring lines up with magnetic north until current flows through the coil; the compass needle then swings toward the field created by the loop, coming to rest at some angle away from north. This is the tangent law in action: the strength of the coil's magnetic field is proportional to the tangent of that deflection angle, a relationship nineteenth-century physicists used to calculate unknown currents before ammeters were common laboratory tools.
Technical Specifications
| Specification | Value |
|---|---|
| Overall Dimensions | 10" x 7" x 3" |
| Coil Ring Diameter | 6" |
| Windings | 5 and 10 turns of insulated wire |
| Binding Posts | 3, giving 5, 10, or 15 turn combinations |
Related Instruments
The Tangent Galvanometer pairs naturally with the Electromagnet Kit, which lets students wind and test their own current-carrying coils, and with the Deflection Magnetometer, another instrument that uses compass deflection to measure magnetic field strength.
