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Calculate the capacitance of two parallel plates of area 2 units separated by a distance of 0.2m in air(in picofarad)(a) 8.84(b) 88.4(c) 884.1(d) 0.884This question was posed to me during an internship interview.My doubt stems from Resistances and Capacitances in chapter Electrostatic Boundary Value Problem of Electromagnetic Theory

Answer»

Correct OPTION is (b) 88.4

The EXPLANATION is: Capacitance is given by, C = εo A/d. PUT A = 2, d = 0.2, εo = 8.854 x 10^-12, we get C = 8.841 x 10^-11 = 88. 41 pF.



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