Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T∝ V² T ∝ 1/V T ∝ V T ∝ 1/V² T∝ V² T ∝ 1/V T ∝ V T ∝ 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, if P be the number of poles and N be the rpm of the rotor, then frequency of magnetic reversals will be PN/3000. PN/60. PN/2. PN/120. PN/3000. PN/60. PN/2. PN/120. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, alternator has generated emf per phase of 230 V with 10% 3rd harmonic and 6% 5th harmonic content. Calculate rms line voltage for star connection. 50 V. 100 V. 399 V. 230.2 V. 50 V. 100 V. 399 V. 230.2 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which 1 - Φ motor does operate at high power factor? Capacitor run. Capacitor start. Shaded pole. Split phase. Capacitor run. Capacitor start. Shaded pole. Split phase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The stator frame in an induction motor is used to protect the whole machine. hold armature stamping in position. provide return path for the flux. ventilate the armature. protect the whole machine. hold armature stamping in position. provide return path for the flux. ventilate the armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net voltage across the armature resistance at the time of plugging will be 240 V 234 V 474 V 6 V 240 V 234 V 474 V 6 V ANSWER DOWNLOAD EXAMIANS APP
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