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A typical bicycle dynamo provides 3 watts, normally 0.5 amps at a nominal voltage of 6V. With some dynamos (notably Schmitt dynohubs) you can put two headlamps in series and get twice the voltage and power.

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15y ago
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13y ago

The movement of another body is transmitted to a rectangular coil of wire that is inside a U-Shaped magnet. The motion of this coil of wire cuts the magnetic flux in the magnet. Faraday once stated that-Whenever there is a change in magnetic flux linked with a circuit there is an induced current and the strength of this induced current is directly proportional to the rate of magnetic flux-. So according to this rule when the magnet is in motion it is constantly cutting the magnetic flux, and as it does this there is a current that is induced (eddy currents). However a dynamo can either be A.C or D.C according to the brushes and number of commutators used (Flemings Right-hand rule). If we refer back to Faraday's rule it says that the strength of this induced current is directly proportional to the rate of magnetic flux. This rule can be seen practically in a bicycle that has a dynamo.

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10y ago

Mechanical energy is the input to the bike dynamo.

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12y ago

Kinetic to electrical

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13y ago

Whatever makes the dynamo move.

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12y ago

Mechanical.

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Q: Which energy is coverted as electrical energy from a motor bike dynamometer?
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