DC Generators The critical resistance of the D.C. generator is the resistance of Load Brushes Field Armature Load Brushes Field Armature ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of dc machine is laminated in order to reduce Copper loss Hysteresis loss Eddy current loss Frictional loss Copper loss Hysteresis loss Eddy current loss Frictional loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the series flux To increase the speed and hence generated e.m.f. To reduce the combined effect of armature reaction of both machines So that two similar machines will pass approximately equal currents to the load To increase the series flux To increase the speed and hence generated e.m.f. ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator Mica and copper are equally hard Mica is harder than copper None of the listed here Copper is harder than mica Mica and copper are equally hard Mica is harder than copper None of the listed here Copper is harder than mica ANSWER DOWNLOAD EXAMIANS APP
DC Generators Current versus time graph for an ideal commutation is a None of the listed here Parabola Straight line Hydrobola None of the listed here Parabola Straight line Hydrobola ANSWER DOWNLOAD EXAMIANS APP
DC Generators Magnetic field in a D.C. generator is produced by Electromagnets Both (A) and (B) None of these Permanent magnets Electromagnets Both (A) and (B) None of these Permanent magnets ANSWER DOWNLOAD EXAMIANS APP
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