transformer working principle

generated galvanometer electromagnetic induction electro motive phenomenon electromotive force concentrated magnitude electromagnet magnetic field electromagnetism labeled scheme technical production concept outline installation physics flux vector conversion charge electric technology conductor structure diagram component lightbulb watt principle convert three frequency output high signal phase electrical isolation engineering schematic ampere system winding grid voltage electricity power current distribution transformer circuit primary wire input secondary generation energy transmission step formula alternating inverter working copper electronic wave symbols line device sine