Electrical Machines No load primary current in a transformer leads the applied voltage somewhat less than 90Ã& lags behind applied voltage somewhat less than 90à leads the applied voltage by exactly 90Â& lags behind applied voltage by exactly 90Â&am leads the applied voltage somewhat less than 90Ã& lags behind applied voltage somewhat less than 90à leads the applied voltage by exactly 90Â& lags behind applied voltage by exactly 90Â&am ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If input of a transformer is square wave the output will be pulsed wave. square wave. triangular wave. sine wave. pulsed wave. square wave. triangular wave. sine wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 440 V, 3-phase, 10 pole and 50 HZ synchronous motor delivering a torque of 50 N-m, delivers a power of 3000W 1000W 500W 100W 3000W 1000W 500W 100W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 50% 33.3% 57.7% 66.3% 50% 33.3% 57.7% 66.3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The speed of motor. The voltage across the terminals. None of above. The torque required. The speed of motor. The voltage across the terminals. None of above. The torque required. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In most condition which frame of motor will be preferred? Totally enclosed fan coiled. Open type. Drip proof. Splash proof. Totally enclosed fan coiled. Open type. Drip proof. Splash proof. ANSWER DOWNLOAD EXAMIANS APP