Electrical Machines Which of the following is the largest conversion device? Induction machine Synchronous machine All of these DC machine Induction machine Synchronous machine All of these DC machine ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as V V² f² f V V² f² f 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/2. PN/120. PN/60. PN/3000. PN/2. PN/120. PN/60. PN/3000. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Variation in speed by ward-Leonard control of DC motors occurs due to variation in Field excitaion. Armature current. Supply voltage. Armature voltage. Field excitaion. Armature current. Supply voltage. Armature voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8-pole, DC generator has a simplex wave-wound armature containing 32 coils of 6 turns each. Its flux per pole is 0.06 Wb. The machine is running at 250 rpm. The induced armature voltage is 384 V 96 V 768 V 192 V 384 V 96 V 768 V 192 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Cummulative compound. Series shunt. Differentical compound. have an equal number of electrons and protons. Cummulative compound. Series shunt. Differentical compound. have an equal number of electrons and protons. ANSWER DOWNLOAD EXAMIANS APP
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