InterviewSolution
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InterviewSolution
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Capacitance of a cylindrical capacitor is given by which of the following relation?(a) C = \(\frac{∈l}{ln(\frac{R}{r})}\)(b) C = \(\frac{2πl}{ln(\frac{R}{r})}\)(c) C = \(\frac{2π∈l}{ln(\frac{R}{r})}\)(d) C = \(\frac{2π∈}{ln(\frac{R}{r})}\)This question was posed to me during an online interview.Question is taken from Capacitive Transducer in section Transducers of Electrical Measurements |
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Answer» CORRECT option is (C) C = \(\frac{2π∈l}{ln(\frac{R}{r})}\) The explanation: The capacitance of a cylindrical capacitor is GIVEN by the relation C = \(\frac{2π∈l}{ln(\frac{R}{r})}\) where, l is the length of the cylinder R is the inner radius of the external cylinder r is the OUTER radius of the inner cylinder. |
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