An air filled parallel plate capacitor has a capacitance of 100 pF and a plate separation distance of 0.5 mm.  The gap is filled with a dielectric of relative permittivity = 12 and dielectric strength of 300 kVm-1.  What is the maximum energy this capacitor can store? Note: ε0=8.85x10-12 Fm-1

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Capacitor

The capacitor is an element used to store electrical energy in the electrical field. A capacitor is a form of passive energy.