Ohm's Law Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-ELA-5387
Jlab Export is a leading Ohm's Law Apparatus Manufacturer,and suppliers in India
Ohm's Law Apparatus (code EL-ELA-5387) is a bench unit that demonstrates how current, voltage and resistance depend on one another, for Ohm’s law practicals in school and college physics labs. A DC voltmeter, a DC current meter and a low-wattage built-in rheostat are mounted together; the DC supply is connected at sockets on the outside, and the resistive load is attached externally. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Demonstrates | Interdependence of current, voltage and resistance (Ohm’s law) |
| Voltage meter | DC voltmeter |
| Current meter | DC current meter |
| Rheostat | Built in, low wattage |
| DC supply | Connected from outside at the sockets provided |
| Resistive load | Attached externally |
| 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-ELA-5387 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Ohm’s Law Apparatus?
| Model | Meters | Voltage or current control | Supply, load and other listed details |
|---|---|---|---|
| This apparatus (EL-ELA-5387) | DC voltmeter and DC current meter | Low-wattage built-in rheostat | DC supply joined at outside sockets; resistive load attached externally |
| Ohm's Law Apparatus (potentiometer model) | Two moving coil meters, for voltage and current | Wire-wound potentiometer | Printed circuit diagram; terminals for a 6 V battery, a wire-wound resistance and the power supply |
| Ohms Law Apparatus JLab | Moving coil voltmeter and moving coil ammeter | Wire-wound rheostat | Bakelite plate in a wooden case; terminals for the battery and the resistance coil; supplied with one resistance coil, without battery |
Choose this apparatus when you want the voltmeter, current meter and rheostat together on one unit while keeping your own DC source and test resistances, so the same unit can be used with different wires or coils. The potentiometer model controls the voltage with a wire-wound potentiometer and carries a printed circuit diagram, and the wooden-case model comes with one resistance coil.
What Is the Ohm’s Law Apparatus Used For?
Ohm’s law states that the current through a conductor is proportional to the potential difference across it at constant temperature, V = IR. With a resistance connected across the outside terminals and a DC source at the sockets, students move the rheostat to change the current, read the voltmeter and current meter at each setting, and plot V against I; a straight line through the origin confirms the law and its slope gives the resistance. This is the class 10 science experiment on the dependence of potential difference on current, and the same set-up serves the class 12 physics experiment that finds the resistivity of a wire from a V–I graph, as well as basic electricity work in college and ITI labs.
Switch off or disconnect the supply between readings so the resistance wire does not heat up and change its value, start with the rheostat set for the lowest current, and connect the meters with the correct polarity, positive to positive.
What to Specify When Ordering
- Meter ranges — the listing does not give them, so state the voltage and current ranges that suit your supply and test resistances.
- DC supply — the apparatus takes an external source; add a battery eliminator or cells to the enquiry if needed.
- Resistive loads — add resistance coils or a resistance box for the experiments you plan.
- Quantity — the minimum order is 10 units; one per student group is common.
Frequently Asked Questions
What does this Ohm’s law apparatus demonstrate?
The interdependence of current, voltage and resistance. Readings of voltage and current taken at several rheostat settings show that V/I stays constant for a resistance at constant temperature.
Which meters are fitted?
A DC voltmeter and a DC current meter, together with a low-wattage built-in rheostat for changing the current.
Is a power supply or resistance included?
The DC supply is joined from outside at the sockets and the resistive load is attached externally, so plan for both. A battery eliminator and a resistance box are linked below and can go in the same enquiry.
What are the meter ranges?
They are not given in this listing. Tell JLab the ranges you need, and the quotation will confirm the meters fitted.
What information is needed for an export quotation?
The quantity, destination country and port or city, preferred delivery terms such as FOB or CIF, any packing or labelling needs, and the tender reference where the order is for a tender.
Who manufactures this apparatus?
Jain Laboratory Instruments Pvt Ltd, trading as JLab, makes it at its works in Ambala, Haryana, India, and quotes for it directly.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a physics lab equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. This apparatus is built at JLab’s own works rather than bought in from a trader, so schools, colleges, dealers and importers buy it factory-direct, and repeat orders and replacement parts are handled by the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Burkina Faso in West Africa, the Dominican Republic in Central America and the Caribbean, Turkmenistan in Central Asia, Finland in Northern Europe and Gabon in Central Africa. Details for tender purchases are on the JLab lab tenders page.
Supply, Resistances and Meters for Ohm’s Law Work
- Battery Eliminator — supplies DC power so experiments can run without dry cells.
- Resistance Box Plug Type (Economy Type) — known resistances to connect as the load.
- Multimeter, Analog — for cross-checking voltage, current and resistance readings.
Browse more in Educational Laboratory Apparatus or the full Laboratory Apparatus range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), the meter ranges you need, any supply or resistance items and your delivery location through the contact page.
Last updated: 9 October 2026
