Electrical Machines The total core loss of a 400 V, 50 Hz transformer is 2400W, when it is supplied by 200 V, 25 Hz loss is 800W. Calculate eddy current loss and hysteresis loss? 1000W , 1400W 1600W, 800W 1400W, 1000W 800W, 1600W 1000W , 1400W 1600W, 800W 1400W, 1000W 800W, 1600W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of a dc motor is given by none of these. EbIa. EbIa2. EIa. none of these. EbIa. EbIa2. EIa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through solid connection. commutator. none of above. slip rings. solid connection. commutator. none of above. slip rings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a DC cummulative compound wound motor is loaded Torque increase and speed decrease. Torque and speed both increase. Torque decrease and speed increases. Both torque and speed decrease. Torque increase and speed decrease. Torque and speed both increase. Torque decrease and speed increases. Both torque and speed decrease. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2.5Hz 50Hz 1 Hz 2HZ 2.5Hz 50Hz 1 Hz 2HZ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shaded pole induction motors, the flux moves from ------------- region to ----------------- region respectively? shaded, shaded shaded, unshaded unshaded, unshaded unshaded, shaded shaded, shaded shaded, unshaded unshaded, unshaded unshaded, shaded ANSWER DOWNLOAD EXAMIANS APP
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