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Resistance Box 1-5000 Ohm Range
Resistance Box 1-5000 Ohm Range (Product Code: SCL-347/072) is a brass plug-type resistance box used to add known resistances of up to 5000 ohm to circuits in college and senior school physics laboratories. Its wider range suits galvanometer and voltmeter-conversion practicals where a lower-range box is not enough, with constantan coils housed in a teak wood case. It is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Range | 1 to 5000 ohm |
| Type | Plug type, with brass plugs |
| Resistance coils | Constantan |
| Contact blocks | Brass, 1/2 inch |
| Housing | Teak wood case, deluxe quality |
| Product code | SCL-347/072 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the 5000 Ohm Resistance Box Used For?
The higher range is useful when a galvanometer must be converted into a voltmeter, which needs a large resistance in series with its coil, and when finding a galvanometer's resistance and figure of merit by the half-deflection method. It also serves as the known arm in bridge circuits and as a current limiter in potentiometer set-ups.
To set a value, remove the plugs whose coils add up to the resistance you need and leave the rest firmly seated. Start experiments with a high value unplugged and reduce it gradually, which protects sensitive meters from sudden large currents. It is a useful addition to the physics lab instruments in any senior practical room.
What to Specify When Ordering
- Confirm that the 1 to 5000 ohm range suits your experiments; a lower-range Resistance Box is also available.
- Quantity required per laboratory.
- Companion galvanometers, keys or potentiometers to be quoted together.
OEM Manufacturer
Jain Scientific Equipments Private Limited, whose products carry the ScienceLab name, is the original equipment manufacturer of this 1-5000 ohm resistance box. It is made at the company's own licensed factory at Saha, Ambala, Haryana, India, and sent direct to universities, schools, dealers and importers. Repeat orders and spare plugs are handled by the manufacturer — contact us with your requirement. The company profile has more about ScienceLab.
Related Physics Lab Equipment
High-range resistance work usually involves a galvanometer or potentiometer. Items that fit these experiments:
- Moving Coil Galvanometer — the meter converted or tested with the high series resistance.
- Potentiometer, 10 wire — for internal-resistance and calibration experiments.
- Resistance Box — the lower-range plug box for bridge work.
- Resistance Substitution Box — an alternative for selecting set resistance values.
Browse the Physics Lab category for further electricity apparatus.
Frequently Asked Questions
What range does the Resistance Box 1-5000 Ohm Range cover?
The Resistance Box 1-5000 Ohm Range provides known resistances from 1 up to 5000 ohm, selected with brass plugs. The higher upper limit makes it suitable for galvanometer conversion and figure-of-merit experiments that need thousands of ohms in series.
Can this resistance box be used to convert a galvanometer into a voltmeter?
Yes. The Resistance Box 1-5000 Ohm Range can supply the high series resistance needed to convert a galvanometer into a voltmeter of a chosen range. Calculate the value from the galvanometer's resistance and full-scale current, then unplug the matching coils.
How is the Resistance Box 1-5000 Ohm Range constructed?
The Resistance Box 1-5000 Ohm Range has constantan resistance coils, 1/2 inch brass blocks and brass plugs, housed in a deluxe-quality teak wood case. Constantan is used because its resistance stays nearly constant as temperature changes.
Who manufactures the Resistance Box 1-5000 Ohm Range?
Jain Scientific Equipments Pvt Ltd (ScienceLab) is the OEM of the Resistance Box 1-5000 Ohm Range and makes it at its own licensed factory in Saha, Ambala, Haryana, India. Quotations and repeat orders come straight from the manufacturer, not a reseller.
How can meters be protected when using a high-range resistance box?
When using the Resistance Box 1-5000 Ohm Range with a sensitive galvanometer, begin with a large resistance unplugged and reduce it step by step while watching the deflection. Remember that with every plug inserted, the box offers practically zero resistance.
What details are needed for a quotation?
To quote the Resistance Box 1-5000 Ohm Range, we need the quantity, any matching items such as galvanometers or keys, and the delivery location in India or abroad. Send these through the contact page for a quotation direct from the manufacturer.
Request a Quote
Enquire about the Resistance Box 1-5000 Ohm Range through the contact page or add it to the enquiry cart. We reply with a manufacturer's quotation.
Last updated: 24 September 2026
