Meter Bridge Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12409
Jlab Export is a leading Meter Bridge Manufacturer,and suppliers in India
Meter Bridge (code EL-PL-12409) is a one-metre slide wire of 24 SWG bare constantan stretched along a rule marked in centimetres and millimetres, mounted on a powder-coated aluminium extrusion and clamped to brass plates at the ends of the scale. Heavy-duty 4 mm sockets on the terminating strips take the circuit leads. JLab produces this meter bridge in Ambala, India, and packs a jockey with it.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL341/069 |
| Wire | Single 24 SWG bare constantan wire, 1 m |
| Scale | Metre rule divided in centimetres and millimetres |
| Mounting | Powder-coated aluminium extrusion |
| Wire ends | Clamped to brass plates, with contact at the ends of the scale |
| Terminals | Heavy-duty 4 mm socket terminals on the terminating strips |
| Supplied with | Jockey |
| Quality check | Each meter bridge is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-12409 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Why Constantan and Clamped Ends
Constantan has a fairly high resistivity and a very small temperature coefficient of resistance, so the resistance per centimetre stays uniform and hardly changes as the current warms the wire. The clamps make contact with the wire at the ends of the scale, so the length read off the rule is the length that carries current; this keeps end error small, and swapping the two resistors and averaging removes what is left.
Bridge and Potentiometer Work
In a metre-bridge circuit the two sections of wire on either side of the jockey form two arms of a Wheatstone network. When the galvanometer reads zero, the ratio of their lengths equals the ratio of the unknown and known resistances, so a reading of the balance length gives the unknown value. The same wire also serves as a simple potentiometer for comparing the EMFs of two cells or finding the internal resistance of one.
Related Bridge Items
- Wheatstone Bridge Apparatus — slide-wire bridge with nine brass terminals and copper gap pieces.
- Potentiometer, 10 wire — ten one-metre constantan wires for longer potentiometer work.
- Jockey — pencil jockey with a plated brass contact as a spare.
Resistance boxes, galvanometers and keys for the bridge circuit are in Physics Lab.
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Last updated: 26 October 2026