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    a parallel plate air capacitor

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    The plates of a parallel plate air capacitor are 1.2 nm apart and area of each plate is 20 x 10^-4 m^2.
    Find the capacitance.

    It is connected to a 40 V battery.
    (i) What is the charge on each plate?
    (ii) What is the energy stored in the capacitor?

    Repeat the calculations for the same capacitor with the air gap replaced by a medium of dielectric constant 5.7.

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    Solution Summary

    A parallel plate air capacitor is investigated, such as capacitance, charge, and energy stored.