If the capacitance per unit length of a cylindrical capacitor is 20 pF/m, what is the ratio of the radii of the two cylinders?
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Step 1
We are asked to find the ratio of the radii of the two cylinders, which is b/a. Rearranging the formula for b/a, we get: b/a = e^(C/L * 1/2πε) We are given that C/L = 20 pF/m = 20 * 10^-12 F/m. The permittivity of free space (ε) is approximately 8.85 * 10^-12 Show more…
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