Lecture Demonstrations Laboratory

The Demonstrations Manual

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Electrostatics
Electric Fields And Potential
Capacitance
Current and Resistance
Electromotive Force And Current
DC Circuits
Magnetic Materials
Magnetism
Inductance
Induction: 1x 2x 4x Coils and Bar Magnet; Hanging Ring and Magnet; Flash Bulb Coil; LED Coil; Eddy Current Pendulum; Lenz's Law and Eddy Currents; Eddy Current Tube; Jumping Ring; Eddy Current Levitation; Eddy Current Levitation 2; Eddy Currents 2; Transformers; Electric Motor; Hand Crank Generator; Bicycle generator
Complex Circuits
Semiconductors And Tubes
Transmission Lines and Antennas

Eddy Current Levitation 2

Purpose:

To demonstrate the levitating effect of induced Eddy currents on a large magnet

Procedure:

Place one large Neodymium magnet between the two large copper plates. Put on Plexiglas cover over sides of plates and move another large Neodymium magnet on top of the apparatus and observe the magnet inside levitate only when the outside magnet is moving.

Hints:

It is important to keep the Plexiglas cover on during the demo. The magnet can jump out of the apparatus towards your hands and may cause serious injury.

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