Electrical Machines The direction of rotation of conductor of a DC motor can be determined by Fleming's left hand rule. Ampere law. Lenz's law. Fleming's right hand rule. Fleming's left hand rule. Ampere law. Lenz's law. Fleming's right hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The oscillation in a synchronous motor can be damped out by providing damper bars in the rotor pole faces. oscillation cannot be damped. running the motor on leading power factors. maintaining constant excitation. providing damper bars in the rotor pole faces. oscillation cannot be damped. running the motor on leading power factors. maintaining constant excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of None of these either stator winding or rotor winding. rotor winding. stator winding. None of these either stator winding or rotor winding. rotor winding. stator winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? Compounded DC generator. DC series generator. None of these. DC shunt generator. Compounded DC generator. DC series generator. None of these. DC shunt generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 phase stepper motor has 6 stator poles and 4 rotor poles, then find the step angle? 10° 45° 60° 30° 10° 45° 60° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 6 / 7. 5 / 6. 2 / 3. 4 / 5. 6 / 7. 5 / 6. 2 / 3. 4 / 5. ANSWER DOWNLOAD EXAMIANS APP
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