Ballistic Galvanometer
Product Code : SCL-MBAVTOB-11908
Quick Answer: The Ballistic Galvanometer measures small transient charges and short current pulses from the throw of a heavy, slowly swinging coil. It has a phosphor-bronze strip suspension, a period of 10–12 seconds and a concave mirror of 50 cm focal length.
Last updated: October 2026
Key Features
- Coil resistance 100 ohm or 500 ohm, depending on variant
- Phosphor-bronze strip suspension
- Oscillation period 10–12 seconds
- Charge sensitivity up to 600 mm/µC at 1 metre scale distance; current sensitivity up to 1400 mm/µA
- Concave mirror, 50 cm focal length, for lamp-and-scale reading
- Bakelite case with glass window and three levelling screws
Technical Specifications
| Specification | Value |
|---|---|
| Coil resistance | 100 ohm / 500 ohm (by variant) |
| Suspension | Phosphor-bronze strip |
| Period of oscillation | 10–12 seconds |
| Charge sensitivity | Up to 600 mm/µC at 1 metre scale distance |
| Current sensitivity | Up to 1400 mm/µA |
| Mirror | Concave, 50 cm focal length |
| Case | Bakelite with glass |
| Levelling | Three adjustable levelling screws |
About This Product
Because the coil swings slowly, a brief pulse of charge passes before it moves, and the first throw is proportional to the charge. This is used to compare capacitances, measure mutual inductance and magnetic flux with search coils, plot B-H hysteresis loops of ferromagnetic samples, and study discharge in RC and RL circuits. Laboratories and colleges in Eswatini, Saint Vincent and the Grenadines, Grenada, Trinidad and Tobago, Morocco and Rwanda can buy the Ballistic Galvanometer through an export order.
Frequently Asked Questions
What is the period of the Ballistic Galvanometer?
The oscillation time period is 10–12 seconds, slow enough for the coil to integrate a short charge pulse.
What coil resistances are available for the Ballistic Galvanometer?
It is made with a coil resistance of 100 ohm or 500 ohm, depending on the variant.
Related: Meter Bridge and Various Type of Bridges and Galvanometer, EDSPOT.
For a quotation on the Ballistic Galvanometer, contact Educational Instrument.
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