Anonymous
Anonymous asked in Science & MathematicsPhysics · 1 month ago

What is its capacitance?

A science-fair radio uses a homemade capacitor made of two 30 cm × 30 cm 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?

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  • oubaas
    Lv 7
    1 month ago
    Favorite Answer

    ε o = 8.8542*10^-12 F/m

    C = A*εo*εr / d =  8.8542*10^-12*3*0.30^2*10^4/3 = 8.0 nF

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