Electrical Machines Compensating windings is placed in which part of a D.C motor? On yoke in the pole faces. None of these On yoke in the inter pole gap. On armature. On yoke in the pole faces. None of these On yoke in the inter pole gap. On armature. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Neglecting all losses, the developed torque (T) of DC separately excited motor, operating under constant terminal voltage is reduced to its output power (P) as T is independent of P. T ∝ P. T2 ∝ P3. T ∝ √P. T is independent of P. T ∝ P. T2 ∝ P3. T ∝ √P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. none of these. has no relation. inversely. directly. none of these. has no relation. inversely. directly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on None of these either of these. stationary magnetic field. rotating magnetic field. None of these either of these. stationary magnetic field. rotating magnetic field. 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. 40 V. 60 V. 30 V. 90 V. 40 V. 60 V. 30 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to f2 V V2 f f2 V V2 f ANSWER DOWNLOAD EXAMIANS APP
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