A transformer has 400 turns and 200 turns in the primary and secondary windings respectively. If the current in the primary and secondary windings are 3A and 5A respectively. calculate the efficiency of the transformer? by Sunday | May 22 | Physics WAEC | 0 comments A. 85.0% B. 83.3% C. 37.5% D. 30.0% Correct Answer: Option B B. 83.3% Users Also Read These:The voltage and current in the primary of a…A transformer with 5500 turns in its primary winding…Calculate the number of turns in the secondary coil…A transformer with 55500 turns in its primary is…Mr. Bala’s income is $800.00 per month while that of…