DC Generators The number of brushes in a commutator depends on Speed of armature Voltage Type of winding Amount of current to be collected Speed of armature Voltage Type of winding Amount of current to be collected ANSWER DOWNLOAD EXAMIANS APP
DC Generators The resistance of armature winding depends on All of the listed here Length of conductor Cross sectional area of the conductor Number of conductors All of the listed here Length of conductor Cross sectional area of the conductor Number of conductors ANSWER DOWNLOAD EXAMIANS APP
DC Generators When two D.C. series generators are running in parallel, an equalizer bar is used To increase the series flux To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load To increase the series flux To reduce the combined effect of armature reaction of both machines To increase the speed and hence generated e.m.f. So that two similar machines will pass approximately equal currents to the load ANSWER DOWNLOAD EXAMIANS APP
DC Generators Due to armature reaction, the main pole flux of a dc generator is Distorted only Weakened as well as distorted Weakend only None of the listed here Distorted only Weakened as well as distorted Weakend only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The main drawback of a dc shunt generator is that It is expensive Terminal voltage drops considerably Generated voltage is small Shunt field circuit has high resistance It is expensive Terminal voltage drops considerably Generated voltage is small Shunt field circuit has high resistance 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 0.025 Ω 0.5 Ω 1 Ω 0.055 Ω 0.025 Ω 0.5 Ω 1 Ω 0.055 Ω ANSWER DOWNLOAD EXAMIANS APP
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