Rheostat 20 ohm
Product Code : JA-EE-7518
The Rheostat 20 ohm (SKU JA-EE-7518) is a 20 ohm sliding rheostat for varying current in low-voltage circuits during school and college electricity practicals, including the familiar Ohm's law set-up with a resistor, ammeter and voltmeter. This 20 ohm sliding rheostat is wound with heavily oxidised resistance wire on a vitreous enamel steel tube with die-cast end stands, and has a nickel-plated slider and 4 mm terminal posts. JaincoLab supplies it to laboratories and education projects.
Specifications
The Rheostat 20 ohm has a total resistance of 20 ohm wound in heavily oxidised resistance wire on a vitreous enamel steel tube, carried by die-cast end stands, with a heavy-duty nickel-plated sliding contact and 4 mm terminal posts for a conventional 4 mm plug; its current rating is confirmed on the quotation.
| Product | Rheostat 20 ohm |
| SKU | JA-EE-7518 |
| Resistance | 20 ohm |
| Winding | Heavily oxidised resistance wire on a vitreous enamel steel tube |
| Supports | Die-cast end stands |
| Sliding contact | Heavy duty, nickel plated |
| Terminals | 4 mm terminal posts |
Applications of the 20 ohm sliding rheostat
The 20 ohm rheostat is a common choice for the school Ohm's law experiment, where it sets several different currents through a resistor so that matching voltage readings can be plotted, and for other low-voltage circuits that need smooth current adjustment.
- Ohm's law experiment with a resistor, ammeter and voltmeter
- Current control in lamp and resistance-wire investigations
- Potential divider supply on a low-voltage source
- Adjusting current through coils and electromagnets
- Class sets for senior-school electricity practicals
Scope of supply and ordering
The listing covers one 20 ohm rheostat with sliding contact and 4 mm terminal posts. Supplies, meters and leads are separate items. The current rating, accessories, spares and quantities are confirmed on the quotation.
MOQ, lead time and packing are confirmed per quotation for the quantity and delivery destination. JaincoLab supplies rheostats to individual schools, colleges and bulk education orders.
Frequently asked questions
What resistance does the rheostat provide?
It provides up to 20 ohm.
Is it suitable for the Ohm's law experiment?
Yes. It is used to vary the current through the resistor under test on a low-voltage supply.
How is it connected?
Through 4 mm terminal posts for a conventional 4 mm plug.
Related products
More rheostats and resistance coils are listed in electricity equipment from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Rheostat 20 ohm, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
