Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 44 A. 40 A. 440 A. 400 A. 44 A. 40 A. 440 A. 400 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a Dc generator the magnetic neutral axis coincide with geometrical neutral axis, when there is no load on the generator. the generator runs on overload. the generator runs on designed speed. the generator runs on full load. there is no load on the generator. the generator runs on overload. the generator runs on designed speed. the generator runs on full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop synchronous motor torque. induction generator torque. DC motor torque. induction motor torque. synchronous motor torque. induction generator torque. DC motor torque. induction motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under commutation results in sparking the trailing edge of the brush. sparking at the leading edge of the brush. no sparking. sparking at the middle of the brush. sparking the trailing edge of the brush. sparking at the leading edge of the brush. no sparking. sparking at the middle of the brush. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed regulation of a DC motor is given as NnL − NfL. NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. NnL − NfL. NnL/NfL. (NnL − NfL)/NfL. (NfL − NnL)/NnL. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control provides speed control below rated speed. in one direction only. above rated speed. in both direction. below rated speed. in one direction only. above rated speed. in both direction. ANSWER DOWNLOAD EXAMIANS APP
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