Additional Info

• ID Code: K2-43
• Purpose: Demonstrate Lenz's law
• Description: Thrust one pole of a strong horseshoe magnet into a coil, or quickly withdraw it from inside the coil. A current is induced in the coil that opposes the motion of the magnet, and the reaction force on the coil results in the coil being either pushed or pulled in the same direction that the magnet was moved. Move the magnet in and out of the single turn aluminum coil. Disconnect the hook for the single turn coil. No current can flow so no force is created. Videos:
  • Moving magnet pole into multi-turn copper coil.
  • Moving magnet pole out of multi-turn copper coil.
  • Moving magnet pole in and out of single-turn aluminum coil.
  • Moving magnet into single-turn aluminum coil with open circuit.
• Availability: Available
• References: REFERENCES: (PIRA 5K20.26)
• Loc codes: K2