Electrical Machines For a specific open-circuit voltage of a DC generator, the short-circuit electric current will be maximum when it is separately excited. cumulatively compounded. differentially compounded. shunt connected. separately excited. cumulatively compounded. differentially compounded. shunt connected. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Current in a coil undergoing commutation is not able to get reversed completely by the end of commutation period. It is due to reactance voltage induced in the coil. coil resistance. None of these armature emf. reactance voltage induced in the coil. coil resistance. None of these armature emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.4 0.02 0.2 0.04 0.4 0.02 0.2 0.04 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? 30 V. 40 V. 90 V. 60 V. 30 V. 40 V. 90 V. 60 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Armature. Yoke. Brush. Commutator. Armature. Yoke. Brush. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to V2 f2 V f V2 f2 V f ANSWER DOWNLOAD EXAMIANS APP
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