Consider the surface charge distributed along the disk with inner radius LaTeX: 1m1m, outer radius LaTeX: 2m2m, and charge density LaTeX: 3\left[\frac{\mu C}{m^2}\right]3[μCm2] shown in the figure . Since the medium is empty space, (a) Find the total charge on the disk. (b) If a LaTeX: 2\left[\mu C\right]2[μC] load is placed at the LaTeX: P_1P1 point 10m above the axis of the load, find the force acting on this load.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.