Electrical Machines In dc motors, under leading pole tips flux density will--------? increase decrease None of these either increase or decrease increase decrease None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally None of these. Cummulative compound. Differentical compound. Level Compound. None of these. Cummulative compound. Differentical compound. Level Compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum starting torque is obtained, rotor power is 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 will none of these. increase. remains same. Decrease.d none of these. increase. remains same. Decrease.d ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 30° 72° 18° 36° 30° 72° 18° 36° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 90 V. 30 V. 60 V. 40 V. 90 V. 30 V. 60 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
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