The area of a plate assuming a two-plate construction, Physics

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A capacitor is to be constructed so that its capacitance is 0.2µF and to take a p.d. of 1.25kV 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.

 


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