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Jumping Ring
# 5K20.30


MOVIES
Solid Ring 320X240 613K
Solid Ring 160X120 338K
Ring w/ Slit 320X240 999K
Ring w/ Slit 160X120 557K
Description: Two aluminum rings can be placed around the core of a coil. One ring has a slit and one is solid. With a ring in place, turn on the switch. The solid ring jumps and the slotted ring does not.

Purchased/Built: built

Setup Time: 5 min

Quant. in Demo Room: 1

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 20-18 A copper ring levitates, an aluminum ring flies off, a slit ring does nothing, and a cooled ring flies higher.
Sutton E-236 Solid and split aluminum rings on the vertical transformer.
Freier and Anderson Em-12 An aluminum ring jumps off the iron core of a vertical inductor.

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