Columbia University Physics Lecture Demonstrations


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Mechanics
Fluid Mechanics
Oscillation and Waves
Thermodynamics
Electricity and Magnetism
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5K20.1 Eddy Current Pendulum

[Setup Time: 25 Min.] [Current Condition: Good]

Info

A copper plate is free to swing between the poles of a large electromagnet. When the field is turned up, the plate will brake and quickly come to rest. The solid plate can be replaced with a comb-shaped plate, which diminishes the braking effect of the eddy currents.

Parts List

Blue Large Electromagnet Cart on Back wall

Blue DC Power Supply, Solid and Comb-Shaped Plates are on the cart

Relevant Simulation

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Other Information

Disk vs Slotted Disk

Real-Life Examples

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More Advanced Reading

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