For the development of electromagnetic torque in a rotating electrical machine, the number of rotor poles must be ____________
A. greater than the stator poles
B. less than the stator poles
C. equal to the stator poles
D. either greater or lesser than the stator poles
Answer:A
For the development of electromagnetic torque in a rotating electrical machine, the number of rotor poles must be ____________
A. greater than the stator poles B. less than the stator poles C. equal to the stator poles D. either greater or lesser than the stator poles