Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: 100 Hz. Zero Hz. 50 Hz. 25 Hz. 100 Hz. Zero Hz. 50 Hz. 25 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine current and emf in armature are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are unidirectional current and emf at the terminals are alternating. current and emf in armature are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are unidirectional current and emf at the terminals are alternating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, the no-load slip is generally equal to less than 1 %. 1.5 %. zero. 4 %. less than 1 %. 1.5 %. zero. 4 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? None of these increase decrease either increase or decrease None of these increase decrease either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the function of inter pole in DC generator? Both option B and C. To get a superior commutation. To neutralize the distortion of main field flux due to armature reaction. To serve the economical aspects. Both option B and C. To get a superior commutation. To neutralize the distortion of main field flux due to armature reaction. To serve the economical aspects. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 2000 rpm 250 rpm 500 rpm 1000 rpm 2000 rpm 250 rpm 500 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
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