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• 13:13, 20 April 2022 Physdemo talk contribs created page Hysteresis (Created page with "{{NewDemo|subject=Electricity and Magnetism|topic=Magnetic Materials|file1=Hysteresis.gif}} This demo is used to show the hysteresis curve of iron in a transformer core by plotting B vs H on an oscilloscope. The magnetic induction B is plotted on the vertical axis and the applied field H on the horizontal. The value of H is obtained by using the voltage across a 1 ohm rheostat in series with the primary coil of the transformer. The secondary winding of the transformer p...")