A. high voltage, high current
B. low voltage, high current
C. high voltage, low current
D. low voltage, low current
A. rotary converter
B. mercury are rectifier
C. induction motor D.C. generator set
D. synchronous motor D.C. generator set
A. ball bearings
B. bush bearings
C. magnetic bearmgs
D. needle bearings
A. multiplication of front and back pitches
B. division of front pitch by back pitch
C. sum of front and back pitches
D. difference of front and back pitches
A. using conductor of annealed copper
B. using commutator with large number of segments
C. using carbon brushes of superior quality
D. using equiliser rings
A. current
B. voltage
C. speed
D. none of above
A. all the four poles are north poles
B. alternate poles are north and south
C. all the four poles are south poles
D. two north poles follow two south poles