AC and DC generator cycle

This video explains the working principle of an AC generator, demonstrating how voltage and current change as a coil rotates within a magnetic field. [03:20-03:33] The voltmeter is connected to a coil within a magnetic field, where voltage and current decrease as the coil turns, and the coil is parallel to the magnetic field. V and I decrease from Vmax and Imax as the coil turns further. And again, the coil is parallel to the normal to the magnetic field which is directed from N to S and is parallel to the motion of the coil. [03:33-03:50] The AC generator simulation shows that no voltage is induced when the coil is parallel to the magnetic field, but voltage and current are induced when the coil cuts the magnetic field. There is no change in the magnetic flux, therefore no EMF or no voltage is induced in the coil and no current flows in the coil. Coil is rotated in a clockwise direction again. The coil cut through the magnetic field which is directed from into us. [03:50-04:02] In a 3D simulation, voltage and current reach their maximum values when the coil is horizontal and cuts the magnetic field perpendicularly. V and I increase to voltage, Vmax and current, Imax when the coil is horizontal, and it cuts the magnetic field perpendicularly. [04:02-04:22] A simplified 3D model of an AC generator shows voltage and current decreasing again, and it compares the alternating current (AC) cycle with the direct current (DC) cycle. V and I decrease from Vmax and Imax as the coil turns further again. The alternating current is C cycle, while in the direct current DC cycle, in DC direct current, the current keeps the same voltage and direction in every cycle, that is, every time the generator or dynamo turns over through one revolution full cycle.