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I was given this problem, but i just dont know where to start, i looked through numerous websites, and 3 books as reference, but i can't find anything that is related to this problem. Any help would be appreciated.

here is the problem:

A microwave structure has the cross section shown in the figure below. The

outside tube is grounded and the center conductor is at V = 10V. Use the finite element method to solve for the voltage V in the space between the conductors.(Assume that the length is very long.) There is a picture that goes with this problem, but i dont know how to load it. So im gonna describe it. There is a small square inside a rectangle. the small square is the center conductor, and the rectangle represents the outside tube that is grounded. the length and width of the small square inside is A=2mm, and the width of the outside rectangle is B=8mm, and the length of the outside rectangle is C=10mm.

I really need help on how to start this problem, please help. thank you

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# Need help with electromagnetics

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