The purpose of providing 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 mag-netizing current
D. to provide all above features
Answer:C
The purpose of providing 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 mag-netizing current D. to provide all above features