The stator and the rotor of an A.C. motor are connected by a:
Correct answer: D. No physical connection between them
- A. Copper wire
- B. Silver wire
- C. Aluminum wire
- D. No physical connection between them
Explanation
In an AC motor, the stator and rotor are not physically connected. Instead, their interaction occurs through the electromagnetic fields generated by the stator windings and the rotor windings. The stator creates a rotating magnetic field due to the alternating current passing through its coils, which induces a magnetic field in the rotor, causing it to rotate. There's no direct physical connection between the stator and rotor in most AC motor designs.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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