Q1. A charge disk with radius a is sitting on the X-Y plane as shown. The...

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Q1. A charge disk with radius a is sitting on the X-Y plane as shown. The surface charge density Ps = Q (C/m). a) Determine the potential at point P along the axis. b) Electric field E at point P along the axis. c) Determine the potential and Electric field when z >> a. a Q1. A charge disk with radius a is sitting on the X-Y plane as shown. The surface charge density Ps = Q (C/m). a) Determine the potential at point P along the axis. b) Electric field E at point P along the axis. c) Determine the potential and Electric field when z >> a. a