Ohm's Law Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-VOVLACOS-1103
Jlab Export is a leading Ohm's Law Apparatus Manufacturer,and suppliers in India
Ohm's Law Apparatus (code EL-VOVLACOS-1103) is a bench apparatus for verifying Ohm’s law, V = IR, in school and college physics practicals. It carries two moving coil meters for voltage and current, a wire-wound potentiometer to vary the applied voltage, and a printed circuit diagram, with terminals for connecting a 6 V battery, a wire-wound resistance and the power supply. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Experiment | Verification of Ohm’s law (V = IR) |
| Meters | Two moving coil meters, for voltage and current |
| Voltage control | One wire-wound potentiometer |
| Circuit diagram | Printed on the apparatus |
| Terminals | Connections brought out for a 6 V battery, one wire-wound resistance and the power supply |
| Quality check | Each apparatus 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-VOVLACOS-1103 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Ohm’s Law Apparatus Used For?
Ohm’s law states that the current through a conductor is proportional to the voltage across it, provided its temperature and other physical conditions stay the same; the constant of proportionality is the resistance. On this apparatus students connect the resistance to the terminals, turn the wire-wound potentiometer step by step to raise the voltage, and record each pair of voltmeter and ammeter readings. Plotting voltage against current gives a straight line through the origin whose slope is the resistance, and dividing V by I for every reading gives a near-constant value that confirms the law.
The experiment is part of the electricity chapter in class 10 science and a regular practical in class 12 physics, B.Sc. first-year labs, polytechnic and ITI electrical courses, which makes the apparatus a practical Ohm law experiment kit for schools and colleges in India and abroad. For good results, switch off between readings so the resistance wire does not heat up, and keep the meters on a range where the needle moves well across the scale.
What to Specify When Ordering
- Quantity — the minimum order is 10 units; one apparatus per student pair is a common plan.
- Battery or eliminator — the terminals take a 6 V battery or a power supply; say whether you want a battery eliminator quoted.
- Resistance — ask JLab to confirm that the wire-wound resistance is included, or whether you need spare resistances.
Frequently Asked Questions
How do you verify Ohm’s law with this apparatus?
Vary the voltage with the wire-wound potentiometer, note the voltmeter and ammeter readings at each step, and plot V against I. A straight line through the origin, with V/I nearly the same for every reading, verifies the law; the slope gives the resistance.
What power source does it use?
The terminals are provided for connecting a 6 V battery and a power supply. A battery eliminator can replace the battery where mains is available; ask JLab to quote one with the apparatus if needed.
Are the meter ranges stated?
The listing specifies two moving coil meters for voltage and current but not their ranges. Request the ranges with your quotation if your practical sheet needs particular values.
Who manufactures this apparatus?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, at its works in Ambala, Haryana, India.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a physics lab apparatus manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The Ohm’s law apparatus is built at JLab’s own works instead of being bought from a trader, so schools, colleges, dealers and importers get it factory-direct; each unit is visually inspected before dispatch, and repeat orders come straight from the manufacturer. JLab exports worldwide and ships to buyers in every region — for example the Czech Republic in Eastern Europe, Angola in Central Africa, Mauritius in East Africa, Switzerland in Western Europe and Samoa in Oceania. Tender buyers will find details on the JLab lab tenders page.
Related Electricity Apparatus
- Resistances in Series and Parallel Apparatus — the next practical: how resistances combine in series and parallel.
- Ohms Law Series & Parallel Circuits — Ohm’s law plus series and parallel circuits with a built-in variable DC supply.
- Battery Eliminator — a mains-operated DC source in place of a battery.
- Ohms Law and Electrical Resistance — a wall chart on Ohm’s law and resistance for the same lesson.
See the full Verification of Various Laws and Conservation of Signal range or all Scientific Instrument apparatus.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button, or send the quantity (minimum 10 units), whether you need a battery eliminator, and your delivery location through the contact page.
Last updated: 9 October 2026
