Question
Physics Question on Current Transformer
A transformer of efficiency 90% has turns ratio 1: 10. If the voltage across the primary is 220 V and current in the primary is 0.5 A, then the current in secondary is
A
5.5 A
B
5 A
C
4 A
D
4.5 A
Answer
4.5 A
Explanation
Solution
The correct option is (D) : 4.5 A.