Electricity and Magnetism

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5 Terms

1
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Coulomb

The charge of approximately 6.24 times 10 to the 18th power electrons.

2
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Ampere

Rate of flow of electric charge (How many coulombs per second). Units are coulombs/second.

3
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Volt

Unit of electric potential. Has units of joules/coulomb. It tells you how much energy each coulomb of charge gets.

4
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Ohm

This is a unit of resistance. It is a measure of how much a material opposes the flow of current. It has units of volts/ampere. One of these means that you apply 1 volt of pressure resulting in 1 ampere of current.

1 volt per ampere means it takes 1 volt of push to get 1 amp of flow.

5
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Power

The rate at which energy is transferred, used, or converted. It has units of energy over time or voltage times current.