A power transmission line feeds input power at 2.3 kV to a step down transformer with its primary winding having 3000 turns. The output power is…

A power transmission line feeds input power at $\displaystyle 2.3$ kV to a step down transformer with its primary winding having $\displaystyle 3000$ turns. The output power is delivered at $\displaystyle 230$ V by the transformer. The current in the primary of the transformer is $\displaystyle 5 A$ and its efficiency is $\displaystyle 90 \%$. The winding of transformer is made of copper. The output current of transformer is $\displaystyle \_\_\_\_ A$.