Hello to all. I am looking at an example in my book (again. =O) The example has two metal cylinders with a distance, d between them The problem states that a voltage V(t) is applied between the plates. What do they mean by that? (I thought it was an oscillating voltage, since they have a sin(kt) term in the V(t) equation. Is that different from the capacitor being charged at a constant rate by a steady current).