Rheostat 300 ohm
Product Code : JA-EE-7521
The Rheostat 300 ohm (SKU JA-EE-7521) is a 300 ohm sliding rheostat used as a variable resistor or potential divider in school and college electricity practicals where currents are modest. This 300 ohm sliding rheostat is built from heavily oxidised resistance wire wound on a vitreous enamel steel tube, supported on die-cast end stands, with a nickel-plated heavy-duty contact and 4 mm terminal posts. JaincoLab supplies it for physics laboratories and teaching projects.
Specifications
The Rheostat 300 ohm has a 300 ohm winding of heavily oxidised resistance wire on a vitreous enamel steel tube between die-cast end stands, a heavy-duty sliding contact nickel plated against corrosion, and 4 mm terminal posts for conventional 4 mm plugs; the current rating is confirmed on the quotation.
| Product | Rheostat 300 ohm |
| SKU | JA-EE-7521 |
| Resistance | 300 ohm |
| Winding | Heavily oxidised resistance wire on a vitreous enamel steel tube |
| Supports | Die-cast end stands |
| Sliding contact | Heavy duty, nickel plated for corrosion resistance |
| Terminals | 4 mm terminal posts |
Uses of the 300 ohm sliding rheostat
Students use the 300 ohm rheostat to obtain a finely variable voltage from a supply for meter, sensor and component tests, and as a series resistance that keeps currents small while readings are taken in higher-resistance circuits.
- Variable voltage from a supply by potential divider connection
- Series current control in higher-resistance circuits
- Sensor and thermistor characteristic tests
- Meter comparison exercises
- Class sets for college electricity practicals
Scope of supply and ordering
The listing covers one 300 ohm rheostat with sliding contact and 4 mm terminal posts. Supplies, meters and leads are ordered separately. The current rating, accessories, spares and quantities are confirmed on the quotation.
Each quotation confirms MOQ, lead time and packing for the quantity and delivery destination. JaincoLab supplies rheostats to single laboratories and in bulk to colleges and education programmes.
Frequently asked questions
What is the resistance of this rheostat?
It is 300 ohm.
How is the winding made?
Heavily oxidised resistance wire is wound on a vitreous enamel steel tube supported on die-cast end stands.
Is a 280 ohm rheostat also available?
Yes. The Rheostat 280 ohm is listed separately.
Related products
Rheostats, potentiometers and resistance coils are in electricity equipment from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Rheostat 300 ohm, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Tender and project enquiries can be sent through the tenders page.
