A parallel-plate air capacitor is made from two plates 025, Ask an Expert

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A parallel-plate air capacitor is made from two plates 0.25 m2 in area, spaced 1.5 cm apart. It is connected to a 38 V battery. What is the charge on each plate? What is the electric field between the plates? If the battery is disconnected and the plates are pulled apart to a separation of 3 cm, what is the charge on each plate? What is the electric field between the plates now?

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