Electrical Machines On what factors the speed of dc motor depends? Applied voltage. Armature current Ia. All of these. Field flux. Applied voltage. Armature current Ia. All of these. Field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? BYR RBY All of these BRY BYR RBY All of these BRY ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When maximum flux density is constant, the eddy current losses are proportional to V2 f V f2 V2 f V f2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f. f2. f1.5. f3. f. f2. f1.5. f3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 200 V. 100 V. 800 V. 400 V. 200 V. 100 V. 800 V. 400 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by compensating winding and commutating poles. increasing field excitation. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. compensating winding and commutating poles. increasing field excitation. shifting the brush axis from GNA to MNA. fixing the brush axis inline with the pole axis. ANSWER DOWNLOAD EXAMIANS APP
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