Shown in the figure below is a capacitor. Each plate has an area of A = 1.38e-02 m2 and has a gap d = 8.7e-04 meters. At the first moment, the capacitor is empty. At the second moment it is partly filled with a dielectric of constant K = 4.92. The dielectric layer leaves a free area of A1 = 5.52e-03 m2 and covers the filled area A2 = 8.28e-03 m2 . Write the FORMULA for the capacitance of the empty capacitor.
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Shown in the figure below is a capacitor. Each plate has an area of A = 1.38e-02 m2 and has a gap d = 8.7e-04 meters. At the first moment, the capacitor is empty. At the second moment it is partly filled with a dielectric of constant K = 4.92. The dielectric layer leaves a free area of A1 = 5.52e-03 m2 and covers the filled area A2 = 8.28e-03 m2 .
Write the FORMULA for the capacitance of the empty capacitor.
Determine the capacitance of the empty capacitor Cempty = Farads
When you partly fill the capacitor, which of these best describes the new configuration:
Determine the formula for the partly filled capacitor Cfilled =
Determine the value of the partly filled capacitor Cfilled = Farads
NOTE: Decide whether the partly filled capacitor acts like parallel or series by following the charge:
- If the charge splits between the caps, parallel.
- If the charge is the same on both caps, series.
- The formula for the filled capacitor should use A1 and A2 (NOT A).
Be careful with which value is A1 vs. which value is A2.
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