5K20.30 Jumping Ring

A solid aluminum ring on the vertical transformer jumps while a split ring does not.

Setup Requirements: Minimal

Equations: Current induced in ring by changing flux. Direction depends on Lenz's Law. Net repulsion due to ring acting as resistor and inductor.

Safety Issues: AC voltage at terminals.

Added Info: The equation for this device is in Solutions Manual for Corson & Lorraine Electromagnetic Fields and Waves textbook.