The purpose of providing an iron core in a step-up transformer is
A. to provide coupling between primary and secondary
B. to increase the magnitude of mutual flux
C. to decrease the magnitude of magnetizing current
D. to provide all the above features
Answer:C
The purpose of providing an iron core in a step-up transformer is
A. to provide coupling between primary and secondary B. to increase the magnitude of mutual flux C. to decrease the magnitude of magnetizing current D. to provide all the above features