Principle

Turning a coil in the magnetic field generates voltage on its ends (induced voltage). After each half rotation of the coil the voltage changes its sign. If just at this moment the polarity of the coil winding is reversed with the help of a so-called collector, then DC voltage is generated. A light bulb can be operated with the electrical energy generated.

Benefits


Demonstrative experiment due to large instruments 

Easy and sturdy setup

Display of measuring range, kind of current and unit also on the back side


Tasks


Observe the voltage depending on the rotational velocity of the generator.

Observe the current and the brightness of the light bulb depending on the rotational velocity of the generator.