Selecciona la opción correcta de los menús desplegables para completar el texto.
(( p.d, Amps ) across ( primary coil, secondary coil ) (v) / (( p.d, Amps ) across ( secondary coil, primary coil ) (v)) = (( number of turns, e.m.f ) on ( primary coil, secondary coil ) / ( number of turns, e.m.f ) on ( secondary coil, primary coil ))