Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 220 volt. 240 volt. 440 volt. 230 volt. 220 volt. 240 volt. 440 volt. 230 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed by a synchronous motor depends on supply voltage and load angle supply voltage and excitation excitation and load angle supply voltage, load angle and excitation supply voltage and load angle supply voltage and excitation excitation and load angle supply voltage, load angle and excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An IM cannot run at synchronous speed because none of above. induction motor will become synchronous motor. rotor torque will not be produced. air friction will prevent it. none of above. induction motor will become synchronous motor. rotor torque will not be produced. air friction will prevent it. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is half of the supply voltage. All of these equal to supply voltage. double the supply voltage. half of the supply voltage. All of these equal to supply voltage. double the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When pure inductive load is connected to the alternator, what is the effect of armature reaction? Magnetization Demagnetization None of these Cross magnetization Magnetization Demagnetization None of these Cross magnetization ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tertiary winding in a transformer is mostly zig - zag delta connected. star connected. delta connected. zig - zag star connected. zig - zag delta connected. star connected. delta connected. zig - zag star connected. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS