Electrical energy can be generated using two primary methods. In the first method, a stationary conductor is placed within a rotating magnetic field, which induces an e.m.f in the conductor. In the second method, the magnetic field remains stationary while the conductor rotates within it, producing electricity. Both methods rely on the principle of electromagnetic induction to convert mechanical motion into electrical energy.
it is not necessary that only the conductor moves or only the magnetic field moves. What truly matters is the relative motion between the conductor and the magnetic field. When either of them is moved with respect to the other, an e.m.f is induced.
The conductor and the magnetic field are like the fruit and knife, where both can interchange roles. The essence lies in the relative movement, which creates the required effect. This simple comparison makes it easy to understand how electricity is generated.
When the magnetic field is fixed and the conductor rotates, it is called static generation, and when the conductor is fixed and the field rotates, it is called dynamic generation.
