1- Which of the following motor is required to be started on load? a) Synchronous motor. b) DC series motor c) DC shunt motor d) Induction motor 2- Slip of 3-Phase Induction Motor should always be a) Less than 1 b) Zero c) Equal to 1 d) Greater than 1 3- Which of the following motor is used in-order to attain rotatory motion in fixed steps or pulses? a) Servo Motor b) Reluctance Induction Motor c) Stepper Motor d) Universal Motor

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Stator and Rotor Magnetic Field

The stator and rotor magnetic field is the resulting magnetic field generated by a system of coils that are symmetrically aligned. They are supplied with polyphase currents. The magnetic field is generated by poly-phase (two or more phases) current or single-phase current. In the latter case, two field stator windings are supplied and two resulting electromagnetic fields are generated beyond the stage.