Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. has no relation. directly. none of these. inversely. has no relation. directly. none of these. inversely. 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 In above questions, find the power delivered by each of the alternators to a load of impedance 6Ω(resistive) 6000 W, 7000 W. 3190 W, 5040 W. 1000 W, 5040 W. 100 W, 2000 W. 6000 W, 7000 W. 3190 W, 5040 W. 1000 W, 5040 W. 100 W, 2000 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V DC machine has an armature resistance 1Ω. If the full load current is 20 A, the difference of induced voltage and generator is 0 V. 40 V. 60 V. 20 V. 0 V. 40 V. 60 V. 20 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 stack stepper motor has 12 teeth on stator as well as on rotor. Determine the step size when each stack excited? 24°. 30°. 10°. 45°. 24°. 30°. 10°. 45°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor Remains same. Decrease. Increase. None of these. Remains same. Decrease. Increase. None of these. ANSWER DOWNLOAD EXAMIANS APP
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