In a D.C. generator in case the resistance of the field winding is increased, then output voltage will____________?

A. increasing its field resistance
B. decreasing its field resistance
C. increasing its speed
D. decreasing its speed

A. any even number of conductors
B. any odd number of conductors
C. that even number which is exact multiple of poles + 2
D. that even number which is exact multiple of poles

A. ball bearings
B. bush bearings
C. magnetic bearmgs
D. needle bearings

A. to reduce eddy current losses
B. to enhance flux density
C. to amplify voltage
D. to provide mechanical balance for the rotor

A. flux/pole
B. speed of armature
C. number of poles
D. all of the above

A. current
B. voltage
C. speed
D. none of above