Young's Modulus Apparatus
Product Code : SCL-PLE-11722
Quick Answer: The Young’s Modulus Apparatus is a Searle’s twin-frame instrument with a 0.01 mm micrometer head, spirit level and wire-clamping chucks, for finding the Young’s modulus of copper, brass and steel wires.
Last updated: 18 October 2026
Key Features
- Searle’s twin-frame design compensates for thermal expansion.
- Micrometer head reading to 0.01 mm.
- Spirit level on the crossbar shows when the frames are level.
- Wire-clamping chucks on corrosion-resistant metal frames.
- Hooks for slotted weights (weights sold separately).
Technical Specifications
| Specification | Value |
|---|---|
| Design | Searle’s type, twin frame |
| Measurement | Micrometer head, 0.01 mm resolution |
| Levelling | Spirit level on crossbar |
| Suitable wires | Copper, brass, steel |
| Frames | Corrosion-resistant metal with wire-clamping chucks |
| Loading | Hooks for slotted weights; weights not included |
How It Is Used
Two identical wires hang from a rigid support, one as a reference and one carrying the load. Weights are added to the test wire and the micrometer is turned until the spirit level is level again, giving the extension. From load, extension, length and wire diameter, students calculate Young’s modulus as stress divided by strain.
Frequently Asked Questions
Are weights supplied with the Young’s Modulus Apparatus?
No. It has hooks for slotted weights, but the weights are available separately.
Why does the Young’s Modulus Apparatus have two frames?
The twin-frame Searle’s design uses a reference wire so that thermal expansion affects both sides equally and does not appear as extension.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related elasticity apparatus:
- Slotted Weight 2.5Kg
- Steel Wire (100gm)
- Brass Wire (100gm)
- Hooke's Law Apparatus
- K Constant Spring Apparatus
The Young's Modulus Apparatus is available for export to schools and laboratories in Mauritius, South Sudan, Sierra Leone, Bahrain and Laos.
For a quotation on the Young's Modulus Apparatus, contact JLab India on +91-8569909696.
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