Resistance Box 50 Ohms
Product Code : SCL-EAE-11174
Quick answer: The Resistance Box 50 Ohms lets students place a known resistance, up to a maximum of 50 ohms, into a circuit and change it as the experiment requires. It is used in Ohm's law practicals, as the known resistance in meter bridge and other bridge work, and in studies of how resistance affects current. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Specification |
|---|---|
| Maximum resistance | 50 ohms |
| Function | Introducing known resistance into electrical circuits |
For the individual resistance steps and terminal type, email [email protected] with the house code SCL-EAE-11174.
How the resistance box is used
A resistance box contains a set of accurately known resistors that can be brought into a circuit individually or in combination. Where a rheostat gives a continuously variable but uncalibrated resistance, a resistance box gives values that are known, so they can be used directly in calculations.
A low-range box such as this 50-ohm unit suits circuits where the other resistances are also small. In a meter bridge, the known resistance R works best when it is close to the unknown resistance X, because the balance point then falls near the middle of the wire, where the measurement is most sensitive. Low values are also handy for comparing the resistance of short lengths of wire.
- Set the box to its highest value before switching on the circuit.
- Connect it in series with the circuit, or in the left gap of the meter bridge as the known resistance.
- Select the value needed and note it for the calculation.
- Keep currents small to avoid heating the resistance coils, and switch off between changes.
Key features
- Maximum resistance of 50 ohms for low-resistance circuit work.
- Introduces known resistance values into compatible circuits.
- Suits Ohm's law experiments on resistance, current and voltage.
- Serves as the known resistance in meter bridge and other bridge measurements.
- Works alongside rheostats, meters and bridge apparatus in the physics lab.
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the 50 ohm resistance box at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
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The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
What is the maximum resistance of this resistance box?
The box provides resistance values up to a maximum of 50 ohms.
Why use a resistance box instead of a rheostat?
A resistance box gives known, calibrated values that can be used directly in calculations, while a rheostat gives a continuously variable but unmarked resistance.
What is the price of the 50 ohm resistance box?
Prices are not published on the website. Add the 50 ohm resistance box to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11174 and the quantity, to receive a quotation.
Does Lab Exports manufacture the 50 ohm resistance box?
Yes. Lab Exports manufactures the 50 ohm resistance box at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11174.
Request a quote
Email [email protected] with the house code SCL-EAE-11174 and the quantity, or add the 50 ohm resistance box to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
