DC Generators In a four-pole D.C. machine All the four poles are south poles Two north poles follow two south poles All the four poles are north poles Alternate poles are north and south All the four poles are south poles Two north poles follow two south poles All the four poles are north poles Alternate poles are north and south ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, current to the external circuit from armature is given through Solid connection Commutator Slip rings None of above Solid connection Commutator Slip rings None of above ANSWER DOWNLOAD EXAMIANS APP
DC Generators The armature of a dc machine having 10 poles is rotating at a speed of 10 revolution per second. The number of hysteresis loops formed per second is ______ 50 100 150 10 50 100 150 10 ANSWER DOWNLOAD EXAMIANS APP
DC Generators The greatest percentage of heat loss in a dc machine is due to ______ Hysteresis loss Copper loss Eddy current loss Frictional loss Hysteresis loss Copper loss Eddy current loss Frictional loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators In case of dc machines, mechanical losses are primary function of Voltage Current None of the listed here Speed Voltage Current None of the listed here Speed ANSWER DOWNLOAD EXAMIANS APP
DC Generators A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is 1 Ω 0.5 Ω 0.025 Ω 0.055 Ω 1 Ω 0.5 Ω 0.025 Ω 0.055 Ω ANSWER DOWNLOAD EXAMIANS APP
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