Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 60 40 600 660 60 40 600 660 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? None of these Both type rotor. Cylindrical rotor. Salient pole rotor. None of these Both type rotor. Cylindrical rotor. Salient pole rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hopkinss test in DC motor is conducted at ? Full load. None of these. Low load. No load. Full load. None of these. Low load. No load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Oil impregnated paper. Glass. Mica. Vacuum. Oil impregnated paper. Glass. Mica. Vacuum. 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 60 V. 40 V. 20 V. 0 V. 60 V. 40 V. 20 V. 0 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is none of these. core. magnetic field poles. armature. none of these. core. magnetic field poles. armature. ANSWER DOWNLOAD EXAMIANS APP
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