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Two parallel square metal plates (side length: 13 cm) are separated by a dielectric material with a dielectric constant 3.9 and a thickness of 2.4 mm. The plates are connected to a 11 V power source and allowed to fully charge. (a) Find the capacitance of the parallel-plate capacitor (in nF): (b) Find the charge on the capacitor (in nC): (c) Find the energy stored on the capacitor (in ?J):

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