Electrical Machines The no load current in a transformer lags the applied voltage by 90°. 0°. about 115°. about 75°. 90°. 0°. about 115°. about 75°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator in DC generator is used for convert AC armature current in to DC increase efficiency collecting of current reduce losses convert AC armature current in to DC increase efficiency collecting of current reduce losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a DC cummulative compound wound motor is loaded Torque and speed both increase. Both torque and speed decrease. Torque decrease and speed increases. Torque increase and speed decrease. Torque and speed both increase. Both torque and speed decrease. Torque decrease and speed increases. Torque increase and speed decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the excitation of normally operating unloaded, salient pole synchronous motor suddenly gets disconnected, it continues to run as a variable reluctance motor. DC motor. induction motor. switched reluctance motor. variable reluctance motor. DC motor. induction motor. switched reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In circle diagram for induction motor, diameter of circle represents which of the following ? Line voltage. Rotor current. Slip. Running torque. Line voltage. Rotor current. Slip. Running torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lamination of core are generally made of cast iron. silicon steel. stainless steel. carbon. cast iron. silicon steel. stainless steel. carbon. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS