Physics 704 Q&A

March 10 On problem 3, is the region supposed to be an equilateral triangle? Yes
March 13 Problem 1 The question about potential V should be the last thing in the problem. You should integrate the charge density in the case where the planes are grounded.
May 19 For problem 3 a), is it considered sufficient to determine the general relationship for the cutoff frequency? Or is it necessary to write down expressions for the ALL of the field components? For part (a), yes. But note that you are asked for all the field components in part (c).
May 21 Problem 1. What do you mean when you say to not ignore the effect of the square? You should take a/b << 1 but not equal to zero.  That is, you must have at least one term in your answer containing a.