Electricity and Magnetism > Electromagnetic Induction > Generators and Motors

DCS# 5K40.83

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BICYCLE GENERATOR

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APPARATUS

bicycle	002
generator mounted on trainer	002
riser block for front wheel	002
bank of lights and switch panel	002
Extech power analyzer	202-11-C
video camera	202-09-D

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DESCRIPTION

Pedaling the bicycle turns the generator, converting mechanical energy into electrical.  The 12 V, 50 W lamps can be switched into the circuit one at a time to increase the load.   The power analyzer can be used to monitor the current, voltage, and power to the bulbs.

NOTES

Pressing down on the foot pedal under the generator roller brings the roller into contact with the tire.  An adjustment screw under the pedal sets the distance between the roller and the tire.  

Thanks to Paul Drake, OC Physics '07, for assembling the bicycle and designing and building the circuit panel.

REFERENCES

Here are the specs for the generator:  http://www.windstreampower.com/443902_PMDCG.php