US$ 229.50
the candy-bar form letting students break each piece into smaller magnets that retain their own north and south poles
sized as both a teaching demonstrator and a small-footprint bench AC supply
three way catalytic converters
Slit-and-solid pendulum pair plus high-field magnet for the demountable transformer
Malvern Eddy Current Unit on Base Geology_Geology Charts & Models the candy-bar form letting studentsDemonstrates eddy current braking as circular magnets swing over a 4. 5 inch spinning aluminum disc, the pivoted magnet arm engaging or disengaging the induced drag on command.