20.) A parallel plate capacitor has plates 20 mm apart, a plate area of 120 sq.cm. and a dielectric with relative permittivity of 4. Determine the electric flux if the capacitor has a charge of 0.08 μC.
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Q: What must L be to build the capacitor?
A: The value of L of the capacitor is 0.0475 meter.
Q: If you want to decrease the capacitance of a capacitor, what should be done to the parallel plates?
A: By using formula of the capacitance of parallel plate capacitor.
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