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4) A parallel plate capacitor is required to store a charge of 7 10- coulombs at a DC potential of 50V. The separation between

4) A parallel plate capacitor is required to store a charge of 7 10- coulombs at a DC potential of 50V. The separation between the electrodes is 5m. Determine the plate area if the following dielectrics that fill the space between the electrodes are used: (a) mica. (b) MgO. (c) BaTiO3. (d) Water that is free of mobile ions.

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