DC Generators The purpose of providing dummy coils in a generator is To amplify voltage To enhance flux density To reduce eddy current losses To provide mechanical balance for the rotor To amplify voltage To enhance flux density To reduce eddy current losses To provide mechanical balance for the rotor ANSWER DOWNLOAD EXAMIANS APP
DC Generators Open circuited armature coil of a D.C. machine is Indicated by a spark completely around the commutator None of these Identified by the scarring of the commutator segment to which open circuited coil is connected Both of the listed here Indicated by a spark completely around the commutator None of these Identified by the scarring of the commutator segment to which open circuited coil is connected Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators A separately excited generator as compared to a self-excited generator Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current Is amenable to better voltage control Is more stable Has all above features Has exciting current independent of load current ANSWER DOWNLOAD EXAMIANS APP
DC Generators In dc generator, the generated voltage depend upon Speed only Both speed and flux Flux only None of the listed here Speed only Both speed and flux Flux only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a commutator Mica is harder than copper Copper is harder than mica Mica and copper are equally hard None of the listed here Mica is harder than copper Copper is harder than mica Mica and copper are equally hard None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is 4 8 6 2 4 8 6 2 ANSWER DOWNLOAD EXAMIANS APP
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