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Find the capacitance of a multi plate capacitor whose relative permittivity=5, n=3, A=4m^2 and d=2m.

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Find the capacitance of a multi plate capacitor whose relative permittivity=5, n=3, A=4m^2 and d=2m.

(a) 1.77*10^-10 F

(b) 1.77*10^10 F

(c) 1.77*10^-11 F

(d) 1.77*10^11 F

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I would like to ask this question from Capacitance of a Multi Plate Capacitor topic in chapter Capacitance and Capacitors of Basic Electrical Engineering

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The correct answer is (a) 1.77*10^-10 F

Explanation: The formula for capacitance of a multi plate capacitor: C=Relative permittivity*absolute permittivity*(n-1)*A/d.

C = 5*8.85*10^-12*(3-1)*4/2=1.77*10^-10.

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