How much does a 1996 Rolls-Royce cost?

Answer 1

the rotor is the part that spins inside the alternator (like the armature in an electric motor) current is fed into it creating electromagnetism, the stator, the other part of the alternator which surrounds the rotar is also fed with current and also becomes a series of electromagnets. When these are both fed and the rotor is turning inside the stator a high magnetic field is created between the two parts being....electricity!