A. flux/pole
B. speed of armature
C. number of poles
D. all of the above
A. to reduce the reluctance of the mag¬netic path
B. to spread out the flux to achieve uniform flux density
C. to support the field coil
D. to discharge all the above functions
A. series generator
B. shunt generator
C. compound generator
D. self-excited generator
A. 0.005 mm
B. 0.05 mm
C. 0.5 m
D. 5 m
A. to reduce eddy current losses
B. to enhance flux density
C. to amplify voltage
D. to provide mechanical balance for the rotor
A. to increase the speed and hence generated e.m.f.
B. to increase the series flux
C. so that two similar machines will pass approximately equal currents to the load
D. to reduce the combined effect of ar-mature reaction of both machines
A. Self-excited generator
B. Separately excited generator
C. Level compounded generator
D. All of the above