Dielectric- A cylindrical capacitor is made of two coaxial copper cylinders of radii a and b...

 

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Dielectric- A cylindrical capacitor is made of two coaxial copper cylinders of radii a and b and length L, as shown above to the left. When the capacitor is charged, the inner cylinder has a charge of -Q, where Q > 0. For now, the capacitor is filled with air. Express all algebraic answers in terms of a, b, L, Q, and physical constants. a. Let be the charge density of the inner cylinder and let be the charge density of the outer cylinder. Derive an expression for the ratio a/ob. b. Using Gauss's Law, determine an expression for the electric field E at a distance r from the axis of the cylinder where a Dielectric- A cylindrical capacitor is made of two coaxial copper cylinders of radii a and b and length L, as shown above to the left. When the capacitor is charged, the inner cylinder has a charge of -Q, where Q > 0. For now, the capacitor is filled with air. Express all algebraic answers in terms of a, b, L, Q, and physical constants. a. Let be the charge density of the inner cylinder and let be the charge density of the outer cylinder. Derive an expression for the ratio a/ob. b. Using Gauss's Law, determine an expression for the electric field E at a distance r from the axis of the cylinder where a