The function(s) of pole shoes in DC machine is/ are to : -
a) Support the field coils b) Reduce the reluctance of the magnetic path c) Spread out the flux to achieve uniform flux distribution in the air gap d) All of the above.
a) Support the field coils b) Reduce the reluctance of the magnetic path c) Spread out the flux to achieve uniform flux distribution in the air gap d) All of the above.