Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as V² f f² V V² f f² V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A Shunt generator running at 1000 rpm has generated emf of 100 V. If the speed increases to 1200 rpm, the generated emf will be nearly 120 V 140 V 175 V 240 V 120 V 140 V 175 V 240 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. none of these. directly. has no relation. inversely. none of these. directly. has no relation. inversely. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? Both Synchronous and Induction motor DC Shunt Motor Induction motors Synchronous motors Both Synchronous and Induction motor DC Shunt Motor Induction motors Synchronous motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 12 pole, 600 V, 50 Hz star connected IM has rotor resistance and stand still resistance of 0.03 Ω and 0.5 Ω respectively. The speed of maximum torque will be 540 rpm. 450 rpm. 240 rpm. 470 rpm. 540 rpm. 450 rpm. 240 rpm. 470 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque developed in the rotor is inversely proportional to slip directly proportional to slip not dependent on the slip either of these inversely proportional to slip directly proportional to slip not dependent on the slip either of these ANSWER DOWNLOAD EXAMIANS APP
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