Electricity and Magnetism > Magnetic Materials

DCS# 5G50.50

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MEISSNER EFFECT

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APPARATUS

YBCO pellet	105-31-B2
tiny magnet	105-31-B2
liquid nitrogen	Kettering
styrofoam cup	203-01-D
nonmagnetic tweezers	024
video camera	103

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DESCRIPTION

Levitate a magnet above a high temperature superconductor.  Cover the YBCO pellet in the short styrofoam cup with liquid nitrogen.  When sufficiently cool, set magnet above pellet and it will hover there.