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14 Cards in this Set
- Front
- Back
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Current Electricity |
the flow of electrons through a wire |
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direct current |
when electrons always flow in the same direction |
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alternating current |
when electrons reverse their direction regulary (most commonly used) |
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voltage |
the measure of energy available to more electrons |
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resistance |
opposition to the flow of electricity |
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Law for current |
I = V / R |
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law for resistence |
R = V / I |
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law for voltage |
V = I * R |
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George Ohm |
studied the relationship of voltage current and resistance in electric current |
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what does it mean when the resistance wire is thin |
there is less room for the electrons to flow |
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The longer the wire the what |
greater distance to travel |
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higher the temperature the |
more resistance |
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most commonly used current |
alternating current |
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the higher the voltage the what |
the more energy each electron carries which the electrons can do more work |
