Dial Type Resistance Box
Product Code : JA-ELA-5461
The Dial Type Resistance Box (SKU JA-ELA-5461) is made by JaincoLab for setting known resistances in physics and electrical practicals. Each dial switches non-inductive wound coils of constantan wire connected in series, on a Bakelite panel clearly engraved with the resistance values, mounted in a wrinkle-finish metal box. The constantan version is accurate to within 0.1%, and a manganin-coil version with 0.05% accuracy is offered with one to five dials.
Specifications
Dials are available in steps of 0.1, 1, 10, 100 and 1000 ohms; the range (tenths, units, tens, hundreds and so on) is specified when ordering.
| Product | Dial Type Resistance Box |
| SKU | JA-ELA-5461 |
| Coils | Non-inductive wound constantan wire, in series |
| Accuracy, constantan | Within ±0.1% |
| Manganin version | Manganin coils, accuracy ±0.05%; 1 to 5 dials |
| Carbon version | Single dial (units, tens or hundreds) or two dials, carbon resistances |
| Dial values | 0.1, 1, 10, 100 and 1000 ohms |
| Extra-cost dials | 0.1 ohm (constantan box); 0.01 ohm (manganin box); 10000 ohm |
| Panel | Bakelite, engraved with resistance values |
| Case | Wrinkle-finish coloured metal box |
Uses of the dial resistance box
- Known resistances in Wheatstone bridge and metre bridge experiments
- Potentiometer and Ohm's law practicals
- Shunt and series resistances when converting galvanometers
- Calibration exercises in electrical measurement labs
Scope of supply and ordering
Each box is made to the coil type and dial range you specify; extra 0.1 ohm, 0.01 ohm or 10000 ohm dials are supplied at extra cost, and quantity, packing and lead time are confirmed on the quotation.
Frequently asked questions
What accuracy do the boxes have?
Within ±0.1% for constantan coils and ±0.05% for manganin coils.
Which dial values are available?
0.1, 1, 10, 100 and 1000 ohms; state the range needed when ordering.
How many dials can a box have?
Manganin-coil boxes are listed with one to five dials.
Related products
Electrical measurement apparatus is in the educational laboratory apparatus range.
Request a quote
Send the coil type, number of dials and quantity for the Dial Type Resistance Box (JA-ELA-5461) through the contact page. Tender and project enquiries can be sent through the tenders page.
