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Lecture Demonstrations Laboratory

Physics Rm. 202

(434) 924-6800


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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