n air-filled parallel-plate capacitor is connected to a 15 V source, it contains 90 µC of charge. After disconnecting the capacitor from the source, the distance between two parallel plates is now reduced to half. What is its new ca

A 12 μF parallel plate capacitor is charged to 200 V and then connected to the 7.0 μF capacitor. The plates are physically pulled apart to double the original separation. a)What is the stored energy? b)Explain the difference in stored energy between the two capacitors. c)Calculate the work performed by the outside agent pulling the plates apart d)The average force exerted on the plates e)The average power if the separation occurs over 10 s.

1. An air-filled capacitor is made from two flat parallel plates 1.5 mm apart. The inside area of each plate is 7.9 cm². (a) What is the capacitance of this set of plates? F Cair = (b) If the region between the plates is filled with a material whose dielectric constant is 6, what is the new capacitance? C dielectric = F

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