JEE Main & Advanced
Physics
Electro Magnetic Induction
JEE PYQ-Electro Magnetic Induction
question_answer
A power transmission line feeds input power at 2300 V to a step 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: [JEE Main 09-Jan-2019 Evening]