Anonymous
Anonymous asked in Science & MathematicsPhysics · 10 years ago

Two 6.0cm-diameter metal disks are separated by a 0.19mm-thick piece of paper?

Two 6.0cm-diameter metal disks are separated by a 0.19mm-thick piece of paper. (Dielectric constant for paper is k=3.7, its dielectric strength is 16 x 10^6 V/m

1)What is the capacitance?

2)What is the maximum potential difference between the disks?

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  • 10 years ago
    Best Answer

    C= capacitance

    k=dielectric constant

    A=area

    e=epsilon naught, the permittivity constant (8.85x10^-12)C^2/Nm^2

    d=distance between the metal disks

    E=dielectric strength

    1) The formula for the capacitance of a dielectric-filled capacitor is

    C=kAe/d

    C=3.7*pi*(.03m)^2*8.85*10^-12C^2/Nm^2/(0.19*10^-3m)

    C=4.87*10^-10 Farads

    2) To find the maximum potential difference, use the equation V=E*d

    V=16*10^6(V/m)*0.19*10^-3(m)=3040V

  • 4 years ago

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