JEE Main 20199 Jan, Evening shiftPhysicsMediumElectromagnetic Induction and Alternating Currents149× since 2002
A power transmission line feeds input power at 2300 V to a srep down transformer with its primary windings having 4000 turns. The output power is delivered at 230 V by the transformer. If the current in the primary of the transformer is 5A and its efficiency is 90%, the output current would be :