Here is the first one, dealing with parallel plate capacitors. I'm just stuck on these, if anyone could give me a push in the right direction at least that would be nice. #1 The Magnitude of the electric field between the plates of a parallel plate capacitor is 480 N/C. A silver dollar is placed between the plates and oriented parallel to the plates. Ignoring the edges, find the induced charge density on each face of the coin. All I know is that the charge density = q/Area, and that the only other thing mentioned is the electric field magnitude. I just need some help understanding it. #2 You know what, I'll do number two later. Thanks to anybody that can help me.