The electromagnetically induced emf can be classified into two categories:
Statically Induced emf:
In statically induced emf, the coil or the conductor is kept stationary and by increasing or decreasing the current and the flux linked with the coil or conductor is changed.
Example: Transformer
Dynamically Induced emf:
In Dynamically Induced emf, the magnetic field is kept stationary and the coil or the conductors is rotating and cut across the field.
Example: DC Generator