Term
This rule applies to what type of circuit?
The total resistance is = to the sum of individual resistances:
(R= r1 + r2 + r3) |
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Definition
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Term
This rule applies to what type of circuit?
The current thru each circuit element is the same and is = to the total circuit current:
(I = i1 = i2 = i3)
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Definition
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Term
This rule applies to what type of circuit?
The sum of voltages across each circuit element is = to the total circuit voltage:
(V = v1 + v2 + v3) |
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Definition
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Term
This rule applies to what type of circuit?
The total resistance is inverse to the sum of the reciprocals of each individual resistance:
(1/R = 1/r1 + 1/r2 +1/r3) |
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Definition
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Term
This rule applies to what type of circuit?
The sum of the current thru each circuit element is = to the total circuit current:
(I = i1 + i2 + i3) |
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Definition
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Term
This rule applies to what type of circuit?
The voltage across each circuit element is the same, and is = to the total circuit voltage:
(V = v1 = v2 = v3) |
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Definition
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| The amount of resistance in a conductor depends on 4 things: |
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Definition
1. material - of the conductor
2. length - of the conductor
3. cross-sectional area - of the conductor
4. temperature - of the conductor |
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| In a conductor, resistance is _______ proportional to the length of the conductor. |
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Definition
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| In a conductor, resistance is _______ proportional to the cross-section of the conductor. |
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Definition
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| In a conductor, resistance becomes _______ as the temperature rises. |
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Definition
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| There are three main factors which characterize a simple electric circuit, they are: |
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Definition
1. Potential Difference
2. Current
3 Resistance |
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| __________ is the maximum difference in potential between the terminals of a battery or generator. |
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Definition
| EMF "Electromotive Force" |
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| _________ is the study of electric charges in motion. |
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Definition
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| __________ is the flow of charged particles through a conductor. |
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Definition
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| __________ is a material that acts as a conductor under certain conditions and an insulator in other conditions. Silicon and Germanium are good examples of this type of material. |
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Definition
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| _________ is any substance through which electrons flow easily. Examples: water and copper |
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Definition
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| __________ is a material that exhibits no electrical resistance when cooled below a certain temperature. Examples: Niobium and Titanium |
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Definition
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| What is a material that inhibits electron flow. Examples: rubber, glass, wood |
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Definition
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| ________ are extremely important when working w/ high voltages. - this was underlined!!! |
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Definition
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Term
| __________ is current of a constant strength flowing in one direction along a conductor. |
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Definition
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| __________ is current that flows in one direction 1st, then in another direction at regular intervals along a conductor. |
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Definition
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Term
| Define electrical circuit: |
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Definition
| an electrical circuit is the path over which electrical current flows. |
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| __________ is the difference in electrical potential between two points in an electric circuit. This is the force that drives electrons along the circuit. |
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Definition
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Term
| ______ is the unit of potential difference (EMF). |
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Definition
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| True or False: A volt is the potential difference that will maintain a current of one ampere in a circuit whose resistance is one ohm. |
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Definition
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| _______ is the amount of electric charge flowing per second. It is proportional to and represents the # of electrons flowing in the circuit. |
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Definition
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Term
| Current is measured in ________. |
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Definition
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| One ampere is defined as one coulomb quantity of electric charge flowing through a conductor in one second. How many electrons per second is that? |
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Definition
6.25 x 1018 electrons per sec.
or
6,240,000,000,000,000,000 electrons per sec.
So basically, 6.25 x 1018 electrons per sec. is = to both 1 coulomb and also 1 ampere because 1 coulomb = 1 amp |
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| Resistance is defined as the property of the electrical circuit which ______ or ______ the flow of electric current. |
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Definition
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Term
True or False: Resistance slows down the current flow.
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Definition
| False: it restricts the current flow |
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Term
| ________ states that the current across the total circuit or any portion of the circuit is = to the voltage divided by the resistance. (I = V/R) |
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Definition
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Term
| In this variation of Ohm's law, what is the formula to find voltage? |
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Definition
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Term
| In this variation of Ohm's law, what is the formula to find resistance? |
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Definition
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Term
| __________ is a circuit in which all elements of the circuit are connected in line along the same conductor so that current passes consecutively through each element. |
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Definition
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| In a ________ the circuit elements are connected as branches of the main circuit so that the current is divided among them. |
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Definition
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Term
| Electric power is measured in what? |
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Definition
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Term
| Power is the product of _____ and _____. |
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Definition
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Term
| What is the power equation? |
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Definition
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| In a series circuit, the _______ is the same through each element of the circuit, while in a parallel circuit the _______ is the same through each element of the circuit. |
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Definition
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