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How can you make an electric current?
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 | | An example of how to make an electric current |
Direct, or one-way, current (DC) is made by a battery or by a dynamo. A dynamo rotates a coil of wire in a magnetic field to produce a current. Alternating current (AC) changes direction, and is produced by an alternator.
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Previous:
Back
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Book:
1001
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Section:
Science and Technology
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Chapter:
Electricity and Magnetism
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