Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 40 660 60 600 40 660 60 600 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. has no relation. inversely. none of these. directly. has no relation. inversely. none of these. directly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Zener diode shunt regulator. Transistor series regulator. None of these Transistor shunt regulator. Zener diode shunt regulator. Transistor series regulator. None of these Transistor shunt regulator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle? 45° 10° 60° 30° 45° 10° 60° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor of a three phase induction motor has an impedance of 0.4 + j4 ohm per phase at standstill the maximum torque occurs at a slip of _____________. 25 %. 10 %. 50 %. 15 %. 25 %. 10 %. 50 %. 15 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motors are preferred for refrigeration and air conditioning in smaller units? Induction motors. Universal motors. Stepper motors. Reluctance motors. Induction motors. Universal motors. Stepper motors. Reluctance motors. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS