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Line
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Throughout EE I've seen many symbols. When it comes to voltage I've seen E,V,and e. Do they all mean the same thing?
Exploring Voltage Symbols in EE: Understanding E, V, and e
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In summary, throughout the conversation, the symbols E, V, and e were discussed. E is generally used for electric field, V or v for voltage, and e for electrons or natural log constants. In the book mentioned, E was used for potential difference and V for voltage, with e possibly referring to induction. It was also mentioned that E can be used for electromotive force, which is equivalent to voltage. However, caution should be taken when using these symbols as they can have different meanings in different contexts.
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berkeman
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E is generally used for electric field
V or v is generally used for voltage
e generally refers to an electron or the constant from natural logs
V or v is generally used for voltage
e generally refers to an electron or the constant from natural logs
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Line
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In the book I've been readinf E means potential difference.
And e was in one about Industion. Eqaution looked something like
L=de/dt
And e was in one about Industion. Eqaution looked something like
L=de/dt
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berkeman
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Sounds like your book has problems. What are the title and author of the book? Potential difference is voltage V, and [tex]E = - \nabla V[/tex]
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Valhalla
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E can be used for electromotive force which is equivalent to voltage right?
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Averagesupernova
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Picture this:
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E = 10V
I = 10A
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Understand?
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E = 10V
I = 10A
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Understand?
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Line
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berkeman said:
If you're counting V is the actual voltage and Eis the voltage with ground
calculated then [tex]E=V- \nabla V[/tex] ...potential difference.
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a4swe
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Here we use U for the voltage and sometimes E for the EMK.
We use V to symbolize the potential difference.
e should be the time dependant voltage (of course we use u for that).
We use V to symbolize the potential difference.
e should be the time dependant voltage (of course we use u for that).
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berkeman
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Holy smokes, that's totally wrong and misleading. Try putting units into that equation...Line said:
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Line
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Potential DIfference does eqaul voltage minus the change in voltage doesn't it?berkeman said:
IN my boo E was potential difference, V was voltage and e had to do with induction.
e=N x d(webers)/dt
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berkeman
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It can, but that's not what you wrote. There's a big difference between [tex]\nabla[/tex] and [tex]\Delta[/tex]Line said:
FYI, [tex]\Delta[/tex] can represent a change (as I guess you intended), but [tex]\nabla[/tex] is the gradient operator. So the equation [tex]E = -\nabla V[/tex] is the way that we usually show the relationship between the vector electric field E and the scalar potential V.
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Line
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In the beginning of the book they teach us E as the voltage.
I=E/R
Then in the middle they give us V.
P=VV/R
I=E/R
Then in the middle they give us V.
P=VV/R
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Ouabache
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You are correct, E can be used for http://www.phys.uAlberta.ca/~gingrich/phys395/notes/node8.html .Valhalla said:
As Berkeman has also mentioned, E (especially boldface) is also used in electrical engineering for "electric field", so be careful of the context in which you are using these symbols.
So in your book, they are using E interchangably with V for voltage potential. (they are virtually synonymous).Line said:
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- #14
leright
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Sounds to me you have a terrible book, Line.
FAQ: Exploring Voltage Symbols in EE: Understanding E, V, and e
What do the letters E, V, and e represent in EE?
E represents electromotive force, which is the energy required to move a unit of charge between two points. V represents voltage, which is the potential difference between two points in an electrical circuit. e represents the elementary charge, which is the charge of a single proton or electron.
How are E, V, and e related to each other?
E and V are directly proportional, meaning that if one increases, the other increases as well. E and e are also directly proportional, as the energy required to move a charge is dependent on the charge itself. V and e, however, are independent of each other.
What is the unit of measurement for E, V, and e?
E is measured in volts (V), V is measured in volts (V), and e is measured in coulombs (C).
How do voltage symbols differ from current symbols?
Voltage symbols, such as E and V, represent the potential difference between two points, while current symbols, such as I, represent the flow of charge through a circuit.
Why is it important to understand voltage symbols in EE?
Understanding voltage symbols is crucial in EE as voltage is a fundamental concept in electrical engineering. It is necessary for designing and analyzing circuits, and it helps in troubleshooting and diagnosing issues in electrical systems.