DC Generators Magnetic field in a D.C. generator is produced by Both (A) and (B) Permanent magnets Electromagnets None of these Both (A) and (B) Permanent magnets Electromagnets None of these ANSWER DOWNLOAD EXAMIANS APP
DC Generators In lap winding, the number of brushes is always Half the number of poles Same as the number of poles Two Double the number of poles Half the number of poles Same as the number of poles Two Double the number of poles ANSWER DOWNLOAD EXAMIANS APP
DC Generators In a D.C. generator 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 Magnetization characteristic = external characteristic External characteristic = magnetization characteristic ohmic drop armature reaction Internal characteristic = magnetization characteristic ohmic drop ANSWER DOWNLOAD EXAMIANS APP
DC Generators The purpose of providing dummy coils in a generator is 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 To reduce eddy current losses ANSWER DOWNLOAD EXAMIANS APP
DC Generators Stray losses consist of Magnetic and mechanical losses Mechanical and copper losses None of the listed here Magnetic and copper losses Magnetic and mechanical losses Mechanical and copper losses None of the listed here Magnetic and copper losses ANSWER DOWNLOAD EXAMIANS APP
DC Generators In D.C. generators, the brushes on commutator remain in contact with conductors which Lie under North Pole Lie under interpolar region Are farthest from the poles Lie under South Pole Lie under North Pole Lie under interpolar region Are farthest from the poles Lie under South Pole ANSWER DOWNLOAD EXAMIANS APP
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