- #1
mess1n
- 24
- 0
Hey, I'd really appreciate if you could read the following transcription from my textbook and let me know what exactly a perfect differential is, because I have no idea!
Cheers guys,
Andrew
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W = q \int \textbf{E} . \textbf{dr} [ the work done in moving a charge q (sorry about the formatting, it's meant to all be one line)]
... can be written as the 'perfect differential' d(-1/r) when E is given by Coulomb's Law:
d(-1/r) = \frac{\textbf{r} . \textbf{dr}}{r^{3}}
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W = q \int \textbf{E} . \textbf{dr} [ the work done in moving a charge q (sorry about the formatting, it's meant to all be one line)]
... can be written as the 'perfect differential' d(-1/r) when E is given by Coulomb's Law:
d(-1/r) = \frac{\textbf{r} . \textbf{dr}}{r^{3}}
---------------------------------
Cheers guys,
Andrew
)