Conversion of Galvanometer into an Ammeter Manufacturer,Supplier and Exporter in India
Product Code : EL-AET-1474
Jlab Export is a leading Conversion of Galvanometer into an Ammeter Manufacturer,and suppliers in India
Conversion of Galvanometer into an Ammeter (code EL-AET-1474) is an analog electronics training board for finding the resistance of a galvanometer by the half deflection method, determining its figure of merit, and converting it into an ammeter of a given range and calibrating it. A 30-0-30 galvanometer and a 0–50 mA DC milliammeter, both with 65 mm rectangular dials, are mounted with an IC-regulated +5 V supply. Jain Laboratory Instruments Pvt Ltd builds the board at its JLab works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Experiments | Resistance of a galvanometer by the half deflection method; figure of merit of the galvanometer; conversion of the galvanometer into an ammeter of a given range, and its calibration |
| Power supply | +5 V DC at 50 mA, IC regulated |
| Galvanometer | 65 mm rectangular dial, reading 30-0-30 |
| Milliammeter | DC, 65 mm rectangular dial, reading 0–50 mA |
| Other components | Potentiometer; adequate number of other electronic components |
| Switch, protection and indicator | Mains ON/OFF switch, fuse and jewel light |
| Mains supply | 230 V ±10%, 50 Hz AC |
| Patch cords | Adequate number, stackable from the rear at both ends, 4 mm spring-loaded plugs, ½ metre long |
| Terminals | Terminals and sockets on the panel for connections and observation of waveforms |
| Operating instructions | Detailed, with the object, theory, design procedures, report suggestions and book references |
| Weight | About 3 kg |
| Dimensions | 340 (W) x 110 (H) x 210 (D) |
| Quality check | Each board is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-AET-1474 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with the JLab Galvanometer Conversion Apparatus?
| Model | Experiments | Supply | Meters and parts |
|---|---|---|---|
| This board (EL-AET-1474) | Galvanometer resistance by half deflection; figure of merit; conversion into an ammeter and calibration | +5 V DC at 50 mA, IC regulated | 30-0-30 galvanometer and 0–50 mA DC milliammeter, 65 mm rectangular dials; potentiometer |
| Conversion of Galvanometer Into a Voltmeter and Current Meter | Conversion of a galvanometer into a voltmeter and into a current meter | 0–10 V DC / 500 mA, regulated | Two round meters, a voltmeter and a galvanometer; three sets of resistances |
Choose this board when the practical covers the galvanometer’s own constants — its resistance by half deflection and its figure of merit — before converting it into an ammeter and calibrating it against the milliammeter. The Conversion of Galvanometer Into a Voltmeter and Current Meter apparatus covers conversion into both a voltmeter and a current meter, with three sets of resistances on its panel.
What Is the Galvanometer Conversion Board Used For?
A galvanometer is a sensitive moving-coil meter that gives full-scale deflection with only a small current, so on its own it cannot measure ordinary circuit currents. Connecting a low resistance, the shunt, in parallel with it carries most of the current past the coil and turns the galvanometer into an ammeter of a larger range. To design that shunt, students first need the galvanometer’s resistance and its figure of merit, which is why the board takes them through all three steps in order. These are standard current-electricity practicals in CBSE class 12 physics and in first-year college physics laboratories.
What to Specify When Ordering
- Model — this board or the voltmeter-and-current-meter conversion apparatus compared above.
- Number of boards for the laboratory.
- Companion electricity trainers to be quoted on the same enquiry.
Frequently Asked Questions
What is the half deflection method?
A high resistance R is connected in series with the galvanometer and the deflection is noted. A shunt resistance S is then connected across the galvanometer and adjusted, with R unchanged, until the deflection falls to half. The galvanometer resistance is then G = RS / (R − S), which is very close to S when R is much larger than G.
What is the figure of merit of a galvanometer?
It is the current needed to deflect the pointer by one scale division, usually expressed in amperes or microamperes per division. It is found from the supply voltage, the series resistance, the galvanometer resistance and the deflection obtained.
How is the galvanometer converted into an ammeter?
By connecting a shunt of resistance S = G × Ig / (I − Ig) in parallel with it, where Ig is the galvanometer’s full-scale current and I is the range wanted. The converted meter is then calibrated by comparing its readings with those of the DC milliammeter.
What information is needed for an export quotation?
The number of boards, the destination country and port or city, delivery terms such as FOB or CIF, any packing or labelling instructions, and the tender reference for tender purchases.
Who manufactures the Conversion of Galvanometer into an Ammeter board?
JLab, the trading name of Jain Laboratory Instruments Pvt Ltd, makes it at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of physics and electronics laboratory apparatus in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The board is made at JLab’s own works rather than bought from a trader, so schools, colleges, dealers and importers order it from the manufacturer itself; each board is visually inspected before dispatch, and repeat orders and spares are handled by the same works. JLab exports worldwide and ships to buyers in every region — for example Italy in Southern Europe, Belgium in Western Europe, Canada in North America, Turkmenistan in Central Asia and Lesotho in Southern Africa. Tender details are on the JLab lab tenders page.
Related Electricity Trainers and Meters
- Electricity Trainer — current electricity and electromagnetism experiments, including converting a galvanometer into a voltmeter or an ammeter.
- Ohm's Law Series and Parallel Circuits — Ohm’s law and series and parallel circuits with a regulated, variable DC supply.
- Galvanometer 30-0-30 — a standalone moving coil galvanometer with colour-coded 4 mm socket terminals.
See the full Analog Electronics Trainer range or all Electronics Lab Equipments.
Request a Quote
Use the Add To Cart enquiry button on this page or the contact page to ask for a quotation, giving the number of boards, the delivery destination and any other items to be quoted together.
Last updated: 22 October 2026
