Generator

A generator consists of the same components as an electric motor.
However, the generator does not require a power source. It converts mechanical into electrical energy.
We therefore need a crank to drive the generator and a small lamp to display the electrical energy.
Wo close the circuit. To better understand the principle of a generator, we replace the coil with a single loop.
Now the crank is turned.
The Lorentz force acts on the electrons of the conductor loop. To determine the strength of the Lorentz force we need:
1. the direction of the magnetic field.
2. the direction of movement of the electrons in the wire.
If magnetic field lines and the electron motion are parallel to each other, there is no Lorentz force and consequently no induced current.
If the magnetic field lines and the electron movement are perpendicular to each other, the Lorentz force and the induced current at maximum.
Consequently, the induced current is not constant, resulting in an alternating current.