Question

An air-filled capacitor (with a capacitance C) consisting two parallel plates separated by a distance d...

An air-filled capacitor (with a capacitance C) consisting two parallel plates separated by a distance d is connected to a battery of voltage V has stored a charge Q. While it is still connected to the battery, the plate separation is adjusted to 2d. In terms of C, V and Q, find the new value of capacitance, voltage, charge and energy stored on the capacitor. Explain your answer. [5 marks]

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