1. Advance a qualitative explanation for reduction of eddy current loss by using a core composed of silicon steel laminations.
2. What are the important qualities of a PM?
3. What is the phase angle between flux and induced emf in an ac excited coil wound on an iron core?
4. Write the expression for inducted emf (rms) in an ac excited coil wound in an iron core. Use stantard symbols.
5. Write the expression for the self inductance of a coil wound on an iron core.