A synchronous machine with its field winding on rotor and polyphase armature winding on stator. At steady state running condition, its air gap field is?

rotating at synchronous speed w.r.t. stator

rotating in the direction of the rotor rotor rotation

A synchronous machine with its field winding on rotor and polyphase a

1.	A synchronous machine with its field winding on rotor and polyphase armature winding on stator. At steady state running condition, its air gap field is?
A.	rotating at synchronous speed w.r.t. stator
B.	stationary w.r.t. rotor
C.	rotating in the direction of the rotor rotor rotation
D.	all of the mentioned
Answer» B. stationary w.r.t. rotor

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A synchronous machine with its field winding on rotor and polyphase armature winding on stator. At steady state running condition, its air gap field is?

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