The function of pole shoes in a dc machine is to
All of the above
The function of pole shoes in a dc machine is to Support the field coils, Reduce the reluctance of the magnetic path, Spread out the flux to achieve uniform flux distribution in the air gap.
Torque developed in an electromechanical energy conversion device depends upon
In electromechanical energy conversion devices (e.g generators and motors) a small air gap is left between the stator and the rotor in order to