Eddy current for demonstrating Lenz's law.

• Labs 13" eddy current demonstration
• Heavy duty 13" copper tube
• Includes 2 masses, one is steel, one is a neodymium magnet
• These currents oppose downward motion through a moving magnetic field created by the falling neodymium magnet

Labs 13 eddy current demonstration. This demonstrates the amazing Lenz's law. Consists two masses drop down a 33cm copper tube. One is steel, one is a neodymium magnet. Two masses drop down a 33cm copper tube. One is steel, one is a neodymium magnet. When students see the magnetic mass falls more slowly than the steel mass, you can introduce them to electrical eddy currents. These currents oppose downward motion through a moving magnetic field created by the falling neodymium magnet.