Electrical Machines Eg (generated emf) and Eb (back emf) both are none of above. different. same. changes. none of above. different. same. changes. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5Ω and back back emf 200 V is 440 A. 44 A. 40 A. 400 A. 440 A. 44 A. 40 A. 400 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for generation of voltage. electromechanical energy conversion. commutation. development of torque. generation of voltage. electromechanical energy conversion. commutation. development of torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for shunt motors. compound motors. All of these series motors. shunt motors. compound motors. All of these series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in dc motor results decrease in speed. increase in speed. open circuit. short circuit. decrease in speed. increase in speed. open circuit. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as 1/V² V² applied voltage V 1/V 1/V² V² applied voltage V 1/V ANSWER DOWNLOAD EXAMIANS APP
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