Mm-3 Modulus of Rigidity

Aim

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

Apparatus

  • Modulus of Rigidity Apparatus
  • Set of Weights

Modulus of Rigidity Apparatus Modulus of Rigidity Diagram

Modulus of Rigidity Apparatus and Diagram

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.

Video