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Definition
| Smallest particle that an element can be divided into before it loses characteristics of the element. |
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Term
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Definition
| Negativly charged particle that orbits the atom |
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Definition
| Positively charge particle that can be found in the neucleus |
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Definition
| neutral particle found in the neucleus |
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Definition
| The outermost layer of electrons, there are 8 valence electrons in a stable shell |
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Term
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Definition
| The potential difference in charge. |
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Definition
| A common point in a circuit, and often becomes a reference point for voltages |
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Term
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Definition
| an opposition to the flow of electricity |
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Term
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Definition
| a material that provides a relativly easy path for current |
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Term
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Definition
| a material that does not provide a path for current to flow |
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Term
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Definition
| The relationship between current, voltage, and resistance. V=RxI |
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Definition
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Definition
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Term
| What are the three forms of Ohms Law? |
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Definition
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Term
| What are the three forms of the power formula? |
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Definition
| P=VxI , P=V^2/R , P=I^2xR |
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Term
| What is a resistor, and what three functions does it most commonly perfor? |
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Definition
| A resistor is a device that adds a known amount of resistance to a circuit. It can be used to divide voltage, it can be used to limit current, and it can be used to discharge voltage stored in another device |
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Term
| What is the formula for voltage across a series resistor? |
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Definition
VRx=Va * Rx/Rt
Where...
VRx = Voltage across Rx
Va = Applied Voltage
Rt = Resistance total
Rx = Resistor Voltage |
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Term
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Definition
| Unit of charge 6.25 x 10^18 electrons, Q |
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Term
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Definition
| Equals 1 coulomb of charge past one point in one second |
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Term
| What 4 faults can be encountered when troubleshooting a resistor? |
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Definition
1.Resistors can increase in resistance
2.Resistors can become open
3.Resistors can decrease in resistance
4.Resistors can become shorted. |
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Term
| In a series configuration, if a resistor was to increase in resistance what signs would you expect the circuit to show? |
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Definition
| There will be less current and a smaller voltage drop across each of the remaining resistors. |
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Term
| In a series configuration, if a resistor was to become open what signs would you expect the circuit to show? |
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Definition
| There will be no complete path for current, and the entire system voltage could be measured across the open resistor. |
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Term
| In a series configuration, if a resistor was to decrease in resistance what signs would you expect the circuit to show? |
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Definition
| More current will flow through a circuit, a larger than normal voltage will appear across the remaining resistors, and a smaller than normal voltage drop will appear across the defective resistor. |
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Term
| In a series configuration, if a resistor was to become shorted what signs would you expect the circuit to show? |
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Definition
| The voltage drop across the resistor becomes zero, and the other good resistors voltage drop increases. |
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