Question
Physics Question on Electromagnetic induction
A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in the secondary coil is 6 A, the voltage across the secondary coil and the current in the primary coil respectively are:
A
450V, 15A
B
450V, 13.5A
C
600V, 15A
D
300V, 15A
Answer
450V, 15A
Explanation
Solution
The correct option (A): 450V, 15A