CH-23 WEB - Chapter-23 Capacitance Electric Energy and...

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Chapter-23 Capacitance, Electric Energy and Properties of Insulators (Additional Questions) 1) An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm 2 , separated by a distance of 1.80 mm. A 20.0-V potential difference is applied to these plates. Calculate (a) the electric field between the plates, (b) the surface charge density, (c) the capacitance, and (d) the charge on each plate. Solution: 2) Four capacitors are connected as shown in the figure. (a) Find the equivalent capacitance between points a and b . (b) Calculate the charge on each capacitor if ∆ Vab = 15.0 V.

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Solution: 3) Consider the circuit shown in the figure, where C 1 = 6.00 µF, C 2 = 3.00 µF, and V = 20.0 V. Capacitor C 1 is first charged by the closing of switch S 1 . Switch S 1 is then opened, and the charged capacitor is connected to the uncharged
capacitor by the closing of S 2 . Calculate the initial charge acquired by C 1 and the final charge on each capacitor. Solution:

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This note was uploaded on 04/03/2012 for the course ENGINEERIN 12 taught by Professor Who during the Spring '09 term at Kadir Has Üniversitesi.

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CH-23 WEB - Chapter-23 Capacitance Electric Energy and...

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