ELECTRICAL MACHINES

 Compensating winding.

 Commutating pole winding.

 Auxiliary winding.

 Both Compensating and Commutating pole winding.

 Adding resistance to field circuit.

 Reversing supply connection.

 Interchanging armature and field connection.

 Reversing armature connection or field connection.

 it will run in opposite direction.

 it will run in same direction by slowly.

 motor will not run.

 it will run in same direction.

 both back emf as well as line current increase.

 both back emf as well as line current fall.

 back emf falls and line current increases.

 back emf increases but line current falls.

 run at very high speed.

 burn.

 start haunting.

 run at very low speed.