A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns

Question

A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns giving the output power at 230 V If the current in the primary of the transformer is 5 A and its efficiency is 90 the output current would be A B 50 A 45 A X

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