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: |Published on: May 22|Categories: 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:

SEE ALSO  Which of the following properties of a steel bar can be measured in terms of the dimension of length only?

Copyright warnings! Do not copy.