- #1

Crazy Tosser

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If we designate the total or internal energy of an isolated or closed system as E, heat as Q and work as W , then the

**circular integral**involving no change in net internal energy is:...

"

What is it?

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- Thread starter Crazy Tosser
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- #1

Crazy Tosser

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If we designate the total or internal energy of an isolated or closed system as E, heat as Q and work as W , then the

"

What is it?

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- #3

jtbell

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- #4

Crazy Tosser

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My mom said that it was a volume-based integral, or something like that, but it's still a little bit unclear (partially because I only know how to integrate in a straight line)

And here is what it looks like:

[tex]\oint[/tex]

- #5

yoran

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[tex]{\Phi} = \oint_S \mathbf{E} \cdot \mathrm{d}\mathbf{A}

= {1 \over \varepsilon_0} \int_V \rho\ \mathrm{d}V = \frac{Q_A}{\varepsilon_0}[/tex]

where you're integrating around a closed surface (such as a sphere, or any other structure else where you can tell at every point whether you're inside or outside).

- #6

Doc Al

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