Eddy Current Unit
Item code
PH923
Demonstrate the amazing Lenz's law with this apparatus
$39.00
$42.90
Demonstrate the amazing Lenz's law with this apparatus.
Two test masses are sent through a 33 cm copper tube. One mass drops quickly, but the other seems to defy gravity by slowing as it falls! Why? Because one mass is steel, and the other is neodymium, a magnet that creates a moving magnetic field, that produces an electrical (eddy) current that resists its fall.
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