A laboratory capacitor consists of two parallel conducting plates, each with area 200 cm 2 , separated

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A laboratory capacitor consists of two parallel conducting plates, each with area 200 cm2, separated by a 0.40-cm air gap. 

(a) Compute its capacitance. 

(b) If the capacitor is connected across a 500-V source, find the charge on it, the energy stored in it, and the value of E between the plates. 

(c) If a liquid with K = 2.60 is poured between the plates so as to fill the air gap, how much additional charge will flow onto the capacitor from the 500-V source?

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