Problem 3: Put yourself inside a parallelplate capacitor with plate radius a and plate separation h 0 and I = dQ/dt > 0. What are the directions of the electric and magnetic elds at or near the edge of the capacitor (at r N (1)? Which way does the Poynting vector point? Now consider the case of negative current, such that Q > 0 and dQ/dt 0 and Q