An air-filled parallel-plate capacitor is to have a capacitance of 0.4 F.(adsbygoogle = window.adsbygoogle || []).push({});

If the distance between the plates is 0.7mm, calculate the required surface area of each plate. Answer in mi^2.

Okay, so I used the Capacitance equation where C=(EoA)/d where Eo is a constant 8.85e-12 C^2/N.m^2

and A is the Area of the plates and d is the plate seperation.

So I plugged in the numbers, found the area and divided it by two to get the area of each plate. I'm getting the wrong answer and I don't know what I'm doing wrong.

If anyone could please help, it would be appreciated. Thank you.

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# Homework Help: Air-filled parallel-plate capacitor question

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