Electrical Machines If an additional resistance is connected in series with a DC series motor operating at rated speed, the speed of the motor will Reduce. Increase. Remain unaltered. Oscillate around the normal speed. Reduce. Increase. Remain unaltered. Oscillate around the normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators brushes are used for reduce eddy current loss collecting of current without any sparkings collecting of voltage convert ac armature current in to dc reduce eddy current loss collecting of current without any sparkings collecting of voltage convert ac armature current in to dc ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC series motors are connected in series and are driving the same mechanical load. If the motors are now connected in parallel the speed will become half. 4 times. double. one fourth. half. 4 times. double. one fourth. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 1.644 KW. 2.73 KW. 5.46 KW. 0.9103 KW. 1.644 KW. 2.73 KW. 5.46 KW. 0.9103 KW. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3 - Φ, 4 pole, 50 Hz IM rotating at full load speed of 1440 rpm, calculate speed of rotor field with respect to rotor structure and stator structure respectively? 1440, 1500. 60, 1440. 50, 1500. 60, 1500. 1440, 1500. 60, 1440. 50, 1500. 60, 1500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Saving of copper in auto transformer is increased as compared to two winding transformer, when transformation ratio K approaches to zero. infinity. unity. two. zero. infinity. unity. two. ANSWER DOWNLOAD EXAMIANS APP
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