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# Knowing when to use Divichlet, Newman, natural forces dealing with boundary conditions

Posted on 2004-04-16
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What are the factor in using the aboved force conditions?

ex.  a triangle (2D);   base has some positive charge in coulombs/m^2 ,

the left side has 5 volts applied ,  the right side is grounded.  All sides of the triangle = 10cm .

How do I determine what force to use at each boundary condition?  (units)
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Question by:940775
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BigRat earned 500 total points
ID: 10902395
I would have t hought that if the material of the tiangle has resistance and a diaelectric constant you can convert the coulombs/meter (I don't quite see how /meter squared?) into volts.

I presume you are to solve the Laplace equation on the triangle for the potential at a point x,y. In any case I suspect that you're going to conformally transform the triangle into something else. Any ideas?
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