Q.The capacitance of a cylindrical capacitor with inner radius a, outer radius b and length l is

\dfrac{2\pi \epsilon_0 l}{\ln(b/a)}

\dfrac{2\pi \epsilon_0 l}{\ln(a/b)}

\dfrac{\pi \epsilon_0 l}{\ln(b/a)}

2\pi \epsilon_0 l (b - a)

The correct solution involves applying the fundamental concept to derive the final value step by step...

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