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Homework Help: 5. Energy of a Capacitor in the Presence of a Dielectric

  1. Feb 6, 2008 #1
    1. The problem statement, all variables and given/known data
    A dielectric-filled parallel-plate capacitor has plate area of 25.0 cm^2 and plate separation of 9.00 mm. The capacitor is connected to a battery that creates a constant voltage of 7.50 V. The dielectric constant is 2.00. Throughout the problem, use 8.85×10−12 C^2/N \cdot m^2


    2. Relevant equations
    U=1/2C*V^2
    C=[tex]\epsilon[/tex]A/d
    C=K*C_0



    3. The attempt at a solution

    2.07×10^−10
    Keep in mind that the area of each portion of the capacitor is half that of the original capacitor.
     
  2. jcsd
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