How i can use power generator on the wheels Then this power

Solution

(a) The bicycle dynamo works by converting the mechanical motion of the rotating wheel into electrical motion with the use of a permanent magnet. The dynamo is a permanent magnet wound with coils of insulated wire. When the magnet rotates, it creates a changing magnetic field. It leads to a generation of electricity.

(b) The power generated on this wheels can be stored in small size batteries and can be used later to light the lamps of respective rated powers.