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csimon1
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Homework Statement
A science-fair radio uses a homemade capacitor made of two 45 45 sheets of aluminum foil separated by a 0.30-mm-thick sheet of paper. Assume dielectric constant of paper is 3.0.
What is its capacitance?
Homework Equations
C=k e0 A / d
The Attempt at a Solution
I'm not sure if this is the wrong formula or if I am supposed to double .45m since there are two plates. Anyways, I came up with this...
(3.0) * (8.85*e-12) * (.45) / .0003
But the answer I came up with is wrong. Can anyone steer me in the right direction?