Demos by PIRA

5G10 Magnets


  5G10.16Suspended magnetic lodestone on string.
  5G10.20Making small magnets by breaking up a larger magnet.

5G20 Magnet Domains & Magnetization


  5G20.10Barkhausen effect: Magnet and coil with soft iron core.
  5G20.30Barkhausen effect model: Many tiny magnets on pivots on OHP.

5G30 Paramagnetism and Diamagnetism


  5G30.10Para and diamagnetic materials in magnetic field with OHP.
  5G30.10Para and diamagnetic materials in magnetic field with arc lamp.

5G40 Hysteresis


5G45 Magnetostriction and Magnetoresistance


5G50 Temperature and Magnetism


  5G50.50YBaCuO pellet with magnet in liquid nitrogen on TV camera.
  5G50.50YBaCuO pellet with magnet in liquid nitrogen on TV camera.