[Jnadke]

A motor is essentially an inductor. An inductor resists change in current flow.

As the voltage is applied, the inductor charges up to the applied voltage, but resists the change of current flow. The magnetic forces induced in the wire causes the motor to spin. When the voltage source is removed, the inductance of the motor will still apply a little bit of power as it discharges, but mostly the motor will act as a flywheel and will continue spinning due to its momentum. It will continue spinning until it either comes to rest due to frictional and magnetic forces, or until it is pulsed again.