Why is the air gap between stator and rotor should be kept as small as mechanically possible in induction motor?

to reduce the leakage flux between stator and rotor

as it leads to better operating power factor of the induction motor

both, to reduce leakage flux between stator and rotor, and also for better operating power factor

Armature winding is one in which working ___________

emf is produced by the leakage flux

flux is produced by field current

flux is produced by the working emf

emf is produced by the working flux

emf is produced by the leakage flux

Field winding carries which of the following current?

both exciting current and load current

Explore topic-wise MCQs in Electrical Machines.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Machines knowledge and support exam preparation. Choose a topic below to get started.

1.	Why is the air gap between stator and rotor should be kept as small as mechanically possible in induction motor?
A.	to reduce the leakage flux between stator and rotor
B.	as it leads to better operating power factor of the induction motor
C.	reduce the eddy current losses
D.	both, to reduce leakage flux between stator and rotor, and also for better operating power factor
Answer» E.

Discussion

2.	Armature winding is one in which working ___________
A.	flux is produced by field current
B.	flux is produced by the working emf
C.	emf is produced by the working flux
D.	emf is produced by the leakage flux
Answer» D. emf is produced by the leakage flux

Discussion

3.	Field winding carries which of the following current?
A.	exciting current only
B.	load current only
C.	both exciting current and load current
D.	none of the mentioned
Answer» B. load current only

Discussion