Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. any of the above decreases remains unaffected increases any of the above decreases remains unaffected increases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The working principle of transformer depends on Coulombs law. Newtons law. Faradays law of electromagnetic induction. Amperes law. Coulombs law. Newtons law. Faradays law of electromagnetic induction. Amperes law. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors provided with open slots have less breakdown torque. higher efficiency. more breakdown torque. leading power factor. less breakdown torque. higher efficiency. more breakdown torque. leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is more than normal speed. less than normal speed. zero. normal speed. more than normal speed. less than normal speed. zero. normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : 1. interpole windings are connected in series with armature windings 2. polarity of interpoles must be the same as that of the main poles in advance 3. distortion of the main field under the pole shoes is not affected by the use of interpoles From above, the correct answer is 1 and 2 2 and 3 1 alone 1 and 3 1 and 2 2 and 3 1 alone 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When excitation is increased (over excitation), the synchronous generator operates at any of the above. lagging power factor. leading power factor. unity power factor. any of the above. lagging power factor. leading power factor. unity power factor. ANSWER DOWNLOAD EXAMIANS APP
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