Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for commutation. development of torque. generation of voltage. electromechanical energy conversion. commutation. development of torque. generation of voltage. electromechanical energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the emf generated by a 4 pole Lap connected DC Motor rotating at 1500 rpm having 1000 conductors and useful flux per pole is 0.4 mWb. 40 volts. 10 volts. 20 volts. 30 volts. 40 volts. 10 volts. 20 volts. 30 volts. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 1 100 50 10 1 100 50 10 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does happen if tripled harmonics given to induction motor? Nothing will happen. Will results in open circuit. Fail to start. Will results in short circuit. Nothing will happen. Will results in open circuit. Fail to start. Will results in short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous reactance( Xs) is the reactance due to armature reaction of the machine reactance due to leakage flux reactance either due to armature reaction or leakage flux combined reactance due to armature reaction and leakage flux reactance due to armature reaction of the machine reactance due to leakage flux reactance either due to armature reaction or leakage flux combined reactance due to armature reaction and leakage flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The noise resulting from vibrations of lamination set by magnetic forces, is termed as boo. magnetostriction. zoom. hum. boo. magnetostriction. zoom. hum. ANSWER DOWNLOAD EXAMIANS APP