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The counter-torque (actio=reactio) of the driving magnet disc is clearly visible. The rotation of the outer part is opposite to what the friction would cause (can distinctly be seen at 01:07 when the power supply is turned off and the friction starts to dominate).
Running up current: 40A (with 5V)
Note: the physical electron flow ("-" to "+") is used to show the current flow.