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An isolated cylindrical capacitor consists of two concentric conducting cylinders of length L. The innder cylinder has a radius Ra and the outer cylinder has a radius Rb. The indder conductor has a charge +Q and the outer conductor has a charge -Q.

a) Determine the electric field between the two conductors.

b) Dtermine the electric potential difference between the two conductors.

c) Determind the capacitance of the device

d) A dielectric material with constant k is introduced, filling the region from Rc to Rb. Where Rc is less than Rb. What will be the final potential difference between the two conductors?

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