Electrical Machines In DC machine torque is proportional to which of the following? None of these flux(φ) armature current(Ia) both A and B None of these flux(φ) armature current(Ia) both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are not a self starting motor? 3-phase induction motor None of these 1-phase induction motor both 1 and 2 3-phase induction motor None of these 1-phase induction motor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator in DC generator is used for convert AC armature current in to DC collecting of current reduce losses increase efficiency convert AC armature current in to DC collecting of current reduce losses increase efficiency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of rotation of DC motor is reversed by Interchanging armature and field connection. Adding resistance to field circuit. Reversing armature connection or field connection. Reversing supply connection. Interchanging armature and field connection. Adding resistance to field circuit. Reversing armature connection or field connection. Reversing supply connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At slip s = 1 torque developed in machine is electromagnetic torque. none. maximum torque. starting torque. electromagnetic torque. none. maximum torque. starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc motor with armature resistance of 0.5 ohms connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 250 A. 340 A. 570 A. 460 A. 250 A. 340 A. 570 A. 460 A. ANSWER DOWNLOAD EXAMIANS APP
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