When secondary of a current transformer is open-circuited its iron core will be
A. hot because of heavy iron losses taking place in it due to high flux density
B. hot because primary will carry heavy current
C. cool as there is no secondary current
D. none of above will happen
Answer:A
When secondary of a current transformer is open-circuited its iron core will be
A. hot because of heavy iron losses taking place in it due to high flux density B. hot because primary will carry heavy current C. cool as there is no secondary current D. none of above will happen