A parallel-plate capacitor has a capacitance of 490 pF, a plate area of 680 cm2, and a mica dielectric (κ = 5.40) completely filling the space between the plates. At 56.0 V potential difference, calculate (a) the electric field magnitude E in the mica, (b) the magnitude of the free charge on the plates, and (c) the magnitude of the induced surface charge on the mica

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.