Is it possible to run(or at least cause some vibrating movement in) an induction motor by powering it with direct current and turning the power on and off?
I am aware that if not switched on and off, DC can not run an induction motor.
As far as I understand induction occurs when the there is change in the magnetic field. Alternative current is used because the magnetic produced by it varies and rotates.
But as Faraday himself observed when he first discovered induction, direct currency causes a stable magnetic field and at that moment some induction occurs and when the DC is turned off the magnetic field disappears and then induction occurs again. But this time it is in opposite direction.
So I don't expect the rotor to turn but can it at least move back and forth to cause a vibratory movement which can power a vibration-powered generator?