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. 400 A. 440 A. 44 A. 40 A. 400 A. 440 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor decreases. remains same. increases. None of these decreases. remains same. increases. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. Highest speed of alternator is 600 rpm. 500 rpm. 3600 rpm. 3000 rpm. 600 rpm. 500 rpm. 3600 rpm. 3000 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor is, in general analogous to auto transformer. two winding transformer with secondary open circuited. None of these two winding transformer with secondary short circuited. auto transformer. two winding transformer with secondary open circuited. None of these two winding transformer with secondary short circuited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Field flux. Applied voltage. All of these. Armature current Ia. Field flux. Applied voltage. All of these. Armature current Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Field flux. Armature current. Applied voltage. All of these. Field flux. Armature current. Applied voltage. All of these. ANSWER DOWNLOAD EXAMIANS APP
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