Wake Forest Physics
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WFU Physics Lecture Demonstrations
Eddy currents set up in a solid ring of aluminum will
generate an opposing magnetic field to that of the electromagnet. The
ring will be launched off the magnet. Cooling the ring with liquid nitrogen
lowers the resistance so it "jumps" higher. A broken ring, however,
cannot set up eddy currents and will not jump.
Jumping Ring Demo w/Rings
Liquid Nitrogen (optional)
Dewar (for LN2)
LN2 Tank Outside Machine Shop
Ask Lab Manager