ELECTRICAL MACHINES

 Auxiliary winding.

 Commutating pole winding.

 Both Compensating and Commutating pole winding.

 Compensating winding.

 Interchanging armature and field connection.

 Adding resistance to field circuit.

 Reversing armature connection or field connection.

 Reversing supply connection.

 it will run in same direction by slowly.

 motor will not run.

 it will run in opposite direction.

 it will run in same direction.

 back emf falls and line current increases.

 back emf increases but line current falls.

 both back emf as well as line current increase.

 both back emf as well as line current fall.

 burn.

 run at very low speed.

 start haunting.

 run at very high speed.