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Definition
the force or strength of electron flow
the total maximum difference of potential between the positive and negative ends
unit of measurement is volt |
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one joule of work done on one coulomb of charge
sometimes abbreviated "E" |
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the flow of electric charge
measured in amperes |
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Definition
the movement of 6.24 x 10^18 electrons/ sec
one coulomb of electric charge flowing per second |
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Definition
| electrons flow in same direction through a conductor |
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Definition
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Definition
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Definition
electrons move first in one direction and then reverse and move in the other direction through a conductor
causes change in both amplitude and direction
accomplished by alternating direction of voltage at energy source |
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Term
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Definition
the amount of opposition to the flow of electrons in an electric circuit
dependent upon type of material |
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Definition
resistance of a conductor is directly proportional to this
the longer the wire, the greater the resistance |
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Definition
resistance of a conductor is inversely proportional to its cross-sectional area
(thicker the wire, less resistance) |
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Definition
| the resistance to a flow of current offered by a column of mercury 106.3 cm long with a diameter of 1 sq mm at 0 degrees Celsius |
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Definition
| pathway that permits electrons to move in a complete circle from their source through resisting electrical devices and back to the source |
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Term
| 3 essential requirements of a circuit |
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Definition
1. source of EMF/voltage
2. current carrying wire (conductor)
3. resistive device to regulate rate of current flow (resistance) |
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Term
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Definition
relationship between voltage, current, and resistance
V=IR |
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