Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? unshaded, unshaded shaded, shaded unshaded, shaded shaded, unshaded unshaded, unshaded shaded, shaded unshaded, shaded shaded, unshaded ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the All of these main field pole shoe armature core All of these main field pole shoe armature core ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines φA DC shunt machine generates 250 V on open circuit at 1000 RPM. Armature resistance is 0.5 Ω, field resistance 250 Ω. When running as a motor takes 4 A at 250 V. Calculate the speed when running as a motor taking 40 A at 250 V. Armature reaction weakens the field by 4%. 970 RPM 940 RPM 920 RPM 960 RPM 970 RPM 940 RPM 920 RPM 960 RPM ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp? 15 N. None of these. Can't be determined. 20 N. 15 N. None of these. Can't be determined. 20 N. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator the emf generated by the armature is maximum when rate of change of flux is minimum. induced voltage is high. rate of change of flux is maximum. shaft rotation is high. rate of change of flux is minimum. induced voltage is high. rate of change of flux is maximum. shaft rotation is high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series motor is efficiently suitable for none of these. constant speed operation. low starting torque operation. high starting torque operation. none of these. constant speed operation. low starting torque operation. high starting torque operation. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS