Alpha Channel: No, Looped Video: No, Frame Rate: 29.97, Resolution: 1920x1080, Video Encoding: H.264, File Size: 108mb, Number of Clips: 1, Total Clip(s) Length: 0:12

Man turns on, step by step, an old electrical charger device, with moving iron ammeter and metal needle on scale grid. An ammeter is a measuring instrument used to measure the electric current in a circuit. Electric currents are measured in amperes (A) hence the name. Moving iron ammeters use a piece of iron which moves when acted upon by the electromagnetic force of a fixed coil of wire.