Spot Reflecting Galvanometer Manufacturer,Supplier and Exporter in India
Product Code : EL-PLE-10815
Quick Answer: The Spot Reflecting Galvanometer is used as a DC null detector in Wheatstone bridges and potentiometers, with a 6 V, 0.3 A bulb as its light source and a 150 mm long scale marked for both centre and end zero use.
Last updated: October 2026
Key Features
- Used as a DC null detector in Wheatstone bridges and potentiometers
- Light source: bulb rated 6 V and 0.3 A
- Scale 150 mm long
- Scale marked for both centre zero and end zero use
- Light source can be set at any point on the scale
Technical Specifications
| Specification | Value |
|---|---|
| Use | DC null detector in Wheatstone bridges and potentiometers |
| Light source | Bulb, 6 V and 0.3 A |
| Scale length | 150 mm |
| Scale marking | Centre zero and end zero |
| Light source position | Can be set at any point on the scale |
About This Product
In a spot reflecting galvanometer, a beam of light reflected from a small mirror on the moving coil falls on a scale as a spot. A tiny current turns the mirror, and the spot moves much further than a pointer would, so very small deflections can be read. For this reason the instrument is widely used to show the balance point in bridge and potentiometer experiments, where the reading should fall to zero.
Frequently Asked Questions
Q1. What is the Spot Reflecting Galvanometer used for?
It is used as a DC null detector in Wheatstone bridges and potentiometers.
Q2. What light source and scale does it have?
The light source is a bulb of 6 V and 0.3 A, and the scale is 150 mm long, marked for both centre and end zero use.
Related: Physics Lab Equipment, Galvanometer EDSPOT, Galvanometer Ballistic, Multi-Range Meter.
For a quotation on the Spot Reflecting Galvanometer, contact School Lab Equipment India.