Question: A capacitor is to be constructed so that its capacitance is 0.2 F and to take a p.d. of 1.25 kV across its terminals.

A capacitor is to be constructed so that its capacitance is 0.2

A capacitor is to be constructed so that its capacitance is 0.2 F and to take a p.d. of 1.25 kV across its terminals. The dielectric is to be mica which, after allowing a safety factor of 2, has a dielectric strength of 50MV/m. Find (a) the thickness of the mica needed, and (b) the area of a plate assuming a two-plate construction. (Assume E, for mica to be 6)

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