What is a Bicycle Dynamo?
A small generator is sometimes fitted to a bicycle to
provide electricity for the lights at night.
The generator is called a bicycle dynamo.
provide electricity for the lights at night.
The generator is called a bicycle dynamo.
How does a Bicycle
Dynamo Work?
Inside the dynamo
a permanent magnet is rotated
in the middle of some coils of wire.
Rotating the magnet instead of the coils has the
advantage that slip rings are not needed.
The rotating magnet produces a changing magnetic field
and this generates electricity in the coils of wire.
in the middle of some coils of wire.
Rotating the magnet instead of the coils has the
advantage that slip rings are not needed.
The rotating magnet produces a changing magnetic field
and this generates electricity in the coils of wire.
The top of the dynamo is
touched against the rim of the
tyre
which rotates when the bicycle is moving.
which rotates when the bicycle is moving.
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