ELECTRICAL MACHINES

 Commutating pole winding.

 Auxiliary winding.

 Both Compensating and Commutating pole winding.

 Compensating winding.

 Adding resistance to field circuit.

 Reversing armature connection or field connection.

 Reversing supply connection.

 Interchanging armature and field connection.

 it will run in same direction.

 motor will not run.

 it will run in opposite direction.

 it will run in same direction by slowly.

 back emf increases but line current falls.

 both back emf as well as line current increase.

 back emf falls and line current increases.

 both back emf as well as line current fall.

 burn.

 run at very high speed.

 start haunting.

 run at very low speed.