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Find the capacitance of a multi plate capacitor whose actual permittivity= 5F/m, n=3, A=4m^2and d=2m.(a) 10F(b) 20F(c) 30F(d) 40FThis question was addressed to me in quiz.The above asked question is from Capacitance of a Multi Plate Capacitor in chapter Capacitance and Capacitors of Basic Electrical Engineering

Answer» CORRECT CHOICE is (b) 20F

To EXPLAIN: The FORMULA for capacitance of a multi plate capacitor: C=Actual permittivity*(n-1)*A/d.

Thus, C=5*(3-1)*4/2 = 20F.


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