Quick Answer: Rigidity Apparatus (Searle's Pattern) finds the modulus of rigidity and Young's modulus of a wire by Searle's method. A 30 cm test wire joins the mid points of two brass rods about 30 cm long, which hang from hooks; three test wires with connecting screws are supplied.
Last updated: October 2026
Key Features
Measures modulus of rigidity and Young's modulus of wire materials
30 cm test wire fixed by two screws to the mid points of two brass rods
Brass rods about 30 cm long, suspended from hooks
Complete with three test wires and connecting screws
Dynamical method version also described: iron rod 16 inch long and 1 inch in diameter, graduated 15-0-15 cm
Dynamical method version has a circular weight with thumb screw that fits on the rod
Technical Specifications
Specification
Value
Method
Searle's method, modulus of rigidity and Young's modulus
Test wire
30 cm long, three supplied with connecting screws
Rods
Two brass rods, about 30 cm long, suspended from hooks
Dynamical method rod
Iron, 16 inch long, 1 inch diameter, graduated 15-0-15 cm
Dynamical method weight
Circular weight with thumb screw, fits on the rod
About This Product
For the Elasticity And Surface Tension bench, the wire under test is screwed between the mid points of the two hanging brass rods, and the set-up is used to find the modulus of rigidity and Young's modulus of the wire's material by Searle's method. The same source also describes a dynamical-method rigidity apparatus built around a graduated iron rod with a circular weight.
Frequently Asked Questions
Q1. What can be measured with the Rigidity Apparatus (Searle's Pattern)? The modulus of rigidity and Young's modulus for the material of a wire, by Searle's method.
Q2. How many test wires are supplied? Three test wires, with connecting screws.
Lab Equipments Ambala supplies institutions and distributors in Trinidad and Tobago, Uganda and Antigua and Barbuda, as part of its export work to 80+ countries.
.jpg)
 (1).png)
.jpg)
.jpg)
.jpg)