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| Directed flow of chrge through a conductor |
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| Voltage current) through a circuit |
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Definition
Difference of potetial that can generate a directed flow of charge
1 Volt = 1 Joule/Coulomb
1V = 1 J/C |
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| opposition to current that is provided by the cunductor |
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| I(current)=Q(amount of charge)/t(time in seconds required for the charge (Q) to pass) |
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Basic unit of charge.
6.25 X 10^18 electrons |
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| one coulomb of charge passes a point in one second. |
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| Flow of charge from negative to positive |
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| Conventional flow approach |
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Definition
| Flow of charge from positive to negative. |
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Resistance (R)
Amount of resistance that limits current to one amp when a one volt difference of potential is applied |
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G = 1/R
Measured in Siemens (S)
Measure of the ease with which current will pass through a component or circuit.
G = 1/R
G (Conductance)
R (Resistance) |
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| Difference of potential required to generate 1 A of current through 1 Ohm of resistance. |
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| Amount of current that is generated when 1 V difference of potential is applied across 1 Ohm of resistance. |
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| 3 Facotors of Resistance of a conductor |
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Definition
Resistivity of material used
Length of material used
Crosss-sectional area of material |
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Definition
R = p 1/A
p is resistivity of material
l is length of conductor
A is cross sectional area of conductor |
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| What is positive temp coefficient? |
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Definition
| Rating that indicates the resistance of a given material increases when temp increases |
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| What is negative temp coefficient? |
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Definition
| Rating that indicates the resistance of a given material decreases when temp increases. |
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^-6 Millionths
u with the funny down thing |
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| Component that is used to limit the current through a circuit. |
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Definition
| component that opposes any change in current. |
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| Component whose operation is based on the flow of charge through a vacuum |
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Definition
Integrated Circuits.
Semiconductor componets that contain entire groups of components or ciruits housed in a single package. |
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