Car Battery, 40 amp power supply, coil with attached capacitor, spring

Code Number: 5K20.33

Demo Title: Lenz's Law - Capacitive Ring

Condition: Excellent

Principle: Inductive interaction

Area of Study: Electricity & Magnetism

Equipment:

Car Battery, 40 amp power supply, coil with attached capacitor, spring.

Procedure:

You can show a discrepant event by using the coil with the capacitor and suspend it over the jumping ring core. Instead of jumping off the core like the rings, the coil with capacitor is actually attracted onto the core.

References:

Benjamin S. Perkalskis and J, Reuben Freeman, "Extending Elihu Thomson's Demonstration and Lenz's Law", AJP, Vol. 65, #10, Oct. 1997, p. 1022.
David J. Dean, "Beyond the Nuclear Shell Model", Physics Today, Nov. 2007, p.48.

5K20.33 - Lenz's Law - Capacitive Ring

Disclaimer

These demonstrations are provided only for illustrative use by persons affiliated with The University of Iowa and only under the direction of a trained instructor or physicist. The University of Iowa is not responsible for demonstrations performed by those using their own equipment or who choose to use this reference material for their own purpose. The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources. Performing all or any portion of any of these demonstrations, with or without revisions not depicted here entails inherent risks. These risks include, without limitation, bodily injury (and possibly death), including risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition; and property loss or damage. Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.