To provide electricity for the bike lights without having to rely on batteries.
It'd be rare to have a dynamo actually IN the rear wheel, far more common to have it at the side of it, driven by pushing against the tire. The purpose of a dynamo is to provide power to bicycle lights. A bicycle dynamo functions just like any other dynamo of the same principle - expose a coil of electric wire to a changing magnetic field and you get a current out of it.
Yes, it is possible to convert the rotational motion of a bicycle wheel into electrical energy using a device called a dynamo. A dynamo is a small generator that contains magnets and a coil of wire. When the bicycle wheel turns, it spins the dynamo, generating electricity that can be used to power lights or charge batteries.
To turn the dynamo in order to make electricity.
The output from the dynamo varies with the speed of the bicycle. And as a geared bicycle is likely(but don't have to) travel a bit faster than the single speed, it may produce a bit more electricity.
i think if we use dynamo in bicycle for lightning purpose so trains wheel is also similar to that of bicycles wheel. actually i wants to save electricity which ios given to the train for lightning and fans
Either a battery or a dynamo.
The generator
A bike dynamo may power a small radio, but you'd have to turn it on manually first.
i know how but i'am having a problem of explaining
Go to a bicycle shop, or the bicycle accessories aisle on a big department store and ask a clerk for bicycle dynamo.
It converts mechanical energy into electric energy. .
A dynamo is a type of electrical generator. On a bicycle it is in contact with the wheels, so that it spins when the bike is moving. That spinning is turned into electricity, which can be used to power bicycle lights.