- #36
betel
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- 0
Seems I missed the continuation of this thread.
Just as a note. Adding the charges and acting as if they are just one charge at the origin works in this case because of gauss law for the flux. The total electric field is not simply the formula sgd gave with the total charge but would be the sum of two terms each representing one of the point charges. Then integrating over a sphere would not be easy.
Which is why I would have used the worded form of Gauss's law.
The electric flux through any closed surface is equal to the total charge in the volume inside this surface.
For the units...
Just as a note. Adding the charges and acting as if they are just one charge at the origin works in this case because of gauss law for the flux. The total electric field is not simply the formula sgd gave with the total charge but would be the sum of two terms each representing one of the point charges. Then integrating over a sphere would not be easy.
Which is why I would have used the worded form of Gauss's law.
The electric flux through any closed surface is equal to the total charge in the volume inside this surface.
For the units...