What is the nature of the EMF in a rotating frame?

A periodically changing induction EMF occurs in the frame, due to the fact that when the frame rotates in a magnetic field, the magnetic flux penetrating the frame periodically changes.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.