Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Remains same. Four times. Doubled. Eight times. Remains same. Four times. Doubled. Eight times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 50 Hz three phase induction motor under full load condition is 725 rpm the number of poles of the motor are ______________. 4. 2. 6. 8. 4. 2. 6. 8. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor normally does not depend on rotor speed. core loss component. shaft torque. synchronous speed. rotor speed. core loss component. shaft torque. synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the pitch factor? Cos α Cos α² sin (α/2) Cos (α/2) Cos α Cos α² sin (α/2) Cos (α/2) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Centrifugal switch is absent in which of the single phase induction motor? PSC (permanent split capacitor) motor. None of these Split phase motor. Shaded pole motor. PSC (permanent split capacitor) motor. None of these Split phase motor. Shaded pole motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determent by Flemings right hand rule. Lenzs law. Flemings left hand rule. Amperes law. Flemings right hand rule. Lenzs law. Flemings left hand rule. Amperes law. ANSWER DOWNLOAD EXAMIANS APP
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