An electrostatic device consists of two concentric shells of radii a and b with surface charge densities of +ps and -Ps,

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An Electrostatic Device Consists Of Two Concentric Shells Of Radii A And B With Surface Charge Densities Of Ps And Ps 1 (76.14 KiB) Viewed 21 times

An electrostatic device consists of two concentric shells of radii a and b with surface charge densities of +ps and -Ps, respectively. The dielectric constant of the medium between the plates is €. Note that this charge configuration exhibits spherical symmetry. a) Find the total charge on each plate. b) Can this device be considered as a capacitor? If not, why? c) Using Gauss' law, find the electric field intensity Ē between the plates. d) What is the electric potential difference between the plates? e) Using E found in part (c), find the total electrostatic energy stored between the shells. (Hint: note that the energy density is 1/2€r€0E2). -B + G