DC Generators In a D.C. generator Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction Internal characteristic = magnetization characteristic ohmic drop External resistance = internal characteristic armature reaction Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction Internal characteristic = magnetization characteristic ohmic drop External resistance = internal characteristic armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a dc generator, the eddy current power loss is Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination Directly proportional to thickness of each lamination None of the listed here Inversely proprtional to thickness of each lamination Directly proportional to sqaure of thickness of each lamination Directly proportional to thickness of each lamination None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Generators A sinusoidal voltage of 5 Hz is applied to the field of a shunt generator. The armature voltage wave will be of v Hz 5 will be zero will be of 5 xiVHz will be of 5 Hz will be of v Hz 5 will be zero will be of 5 xiVHz will be of 5 Hz ANSWER DOWNLOAD EXAMIANS APP
DC Generators The voltage drop for which of the following types of brush can be expected to be least? Carbon brushes None of these Graphite brushes Metal graphite brushes Carbon brushes None of these Graphite brushes Metal graphite brushes ANSWER DOWNLOAD EXAMIANS APP
DC Generators The overall efficiency of a dc generator is maximum when its variable loss is equal to Mechanical loss Stray loss Constant loss Iron loss Mechanical loss Stray loss Constant loss Iron loss ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is To reduce eddy current losses To enhance flux density To provide mechanical balance for the rotor To amplify voltage To reduce eddy current losses To enhance flux density To provide mechanical balance for the rotor To amplify voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS