Electrical Machines In a single phase induction motor, the starting torque developed is proportional to 1/V supply voltage V V² 1/V² 1/V supply voltage V V² 1/V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The constant losses in transformer is/are hysteresis loss. eddy current loss. copper loss. both 2 and 3. hysteresis loss. eddy current loss. copper loss. both 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
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 In case of IM the torque is inversely proportional to √slip. directly proportional to slip2. directly proportional to slip. inversely proportional to slip. inversely proportional to √slip. directly proportional to slip2. directly proportional to slip. inversely proportional to slip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An IM cannot run at synchronous speed because induction motor will become synchronous motor. air friction will prevent it. none of above. rotor torque will not be produced. induction motor will become synchronous motor. air friction will prevent it. none of above. rotor torque will not be produced. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of generated emf in the armature coil of a DC machine is 1. the same as that of the current in a generator 2. the same as that of the current in a motor 3. opposite to that of the current in a generator 4. opposite to that of the current in a motor From these, the correct answer is 1, 4 1, 3 2, 4 2, 3 1, 4 1, 3 2, 4 2, 3 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS