School of Physics Lecture Demonstration Manual

Mm-3 Modulus of Rigidity

Published: Thursday 09 March 2006 - Updated: Thursday 24 March 2011

Aim

To demonstrate that the angle of twist in a wire is proportional to the applied torque.

Apparatus

Diagrams

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Modulus of Rigidity Apparatus

Modulus of Rigidity Diagram

Videos

Modulus of Rigidity

Description

The apparatus consists of a rod clamped at one end and attached to a wheel at the other. The rod passes through a bearing at the wheel end and known torques may be applied by a string wrapped around the wheel. The twist in the rod is measured with an angular scale.

Safety notes

Maintenance 

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