Wheatstone Bridge Apparatus
Product Code : SCL-PLE-11784
Quick Answer: The Wheatstone Bridge Apparatus is a metre bridge: a 1 m resistance wire stretched beside a 100 cm scale on a hardwood base, with thick brass connecting strips and a sliding jockey, for finding unknown resistances by the null-point method.
Last updated: 18 October 2026
Key Features
- 1 m bridge wire of a low temperature-coefficient alloy.
- 100 cm (1000 mm) scale alongside the wire.
- Heavy, thick-gauge brass strips with 4 mm socket or screw terminals.
- Sliding jockey with a spring-loaded knife-edge contact included.
- Polished seasoned hardwood base, approx. 110 cm long, with non-slip feet.
Technical Specifications
| Specification | Value |
|---|---|
| Bridge wire | 1 m, low temperature coefficient |
| Scale | 100 cm / 1000 mm |
| Base | Polished seasoned hardwood, approx. 110 cm, non-slip feet |
| Contact strips | Thick-gauge brass with 4 mm socket/screw terminals |
| Jockey | Sliding, spring-loaded knife-edge contact (included) |
| Method | Null-point (balanced bridge) |
How It Is Used
A known resistance is connected in one gap and the unknown in the other, with a cell across the wire and a galvanometer between the centre strip and the jockey. The jockey is moved along the wire until the galvanometer shows no deflection, and the two balancing lengths give the ratio of the resistances. The same set-up checks the laws of series and parallel resistance.
Frequently Asked Questions
Is a jockey supplied with the Wheatstone Bridge Apparatus?
Yes. A sliding jockey with a spring-loaded knife-edge contact is included.
How long is the wire on the Wheatstone Bridge Apparatus?
The bridge wire is 1 m long and runs beside a 100 cm (1000 mm) scale.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related bridge and resistance measurement items:
The Wheatstone Bridge Apparatus is available for export to schools and laboratories in North Macedonia, Angola, Djibouti, Suriname and Burkina Faso.
For a quotation on the Wheatstone Bridge Apparatus, contact JLab India on +91-8569909696.
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