Electrical Machines A 220 V DC generator is run at full speed without any excitation. The open circuit voltage will be zero. about 50 V. about 2 V. 220 V. zero. about 50 V. about 2 V. 220 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in no sparking. sparking at the leading edge of the brush. sparking at the middle of the brush. sparking the trailing edge of the brush. no sparking. sparking at the leading edge of the brush. sparking at the middle of the brush. sparking the trailing edge of the brush. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected in parallel through inductive coupling either of these depending on the design of the motor in series in parallel through inductive coupling either of these depending on the design of the motor in series ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If peak value of phase mmf is F max , then peak value of the rotating field caused by three phase is (3/2)Fmax. Fmax. (1/2)Fmax. 3Fmax. (3/2)Fmax. Fmax. (1/2)Fmax. 3Fmax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotating magnetic field of 8 pole 50 Hz induction motor is 1000 rpm 3000 rpm 1500 rpm 750 rpm 1000 rpm 3000 rpm 1500 rpm 750 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. The rating of auto transformer is 500 VA 110 VA 550 VA 100 VA 500 VA 110 VA 550 VA 100 VA ANSWER DOWNLOAD EXAMIANS APP
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