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  2. Capacitance - Wikipedia

    en.wikipedia.org/wiki/Capacitance

    A common form is a parallel-plate capacitor, which consists of two conductive plates insulated from each other, usually sandwiching a dielectric material. In a parallel plate capacitor, capacitance is very nearly proportional to the surface area of the conductor plates and inversely proportional to the separation distance between the plates.

  3. RC time constant - Wikipedia

    en.wikipedia.org/wiki/RC_time_constant

    It is the time required to charge the capacitor, through the resistor, from an initial charge voltage of zero to approximately 63.2% of the value of an applied DC voltage, or to discharge the capacitor through the same resistor to approximately 36.8% of its initial charge voltage.

  4. Two capacitor paradox - Wikipedia

    en.wikipedia.org/wiki/Two_capacitor_paradox

    Two identical capacitors are connected in parallel with an open switch between them. One of the capacitors is charged with a voltage of V i {\displaystyle V_{i}} , the other is uncharged. When the switch is closed, some of the charge Q = C V i {\displaystyle Q=CV_{i}} on the first capacitor flows into the second, reducing the voltage on the ...

  5. RLC circuit - Wikipedia

    en.wikipedia.org/wiki/RLC_circuit

    Series RL, parallel C circuit with resistance in series with the inductor is the standard model for a self-resonant inductor. A series resistor with the inductor in a parallel LC circuit as shown in Figure 4 is a topology commonly encountered where there is a need to take into account the resistance of the coil winding and its self-capacitance.

  6. Capacitor - Wikipedia

    en.wikipedia.org/wiki/Capacitor

    The interleaved capacitor can be seen as a combination of several parallel connected capacitors. For n {\displaystyle n} number of plates in a capacitor, the total capacitance would be C = ε o A d ( n − 1 ) {\displaystyle C=\varepsilon _{o}{\frac {A}{d}}(n-1)} where C = ε o A / d {\displaystyle C=\varepsilon _{o}A/d} is the capacitance for ...

  7. Permittivity - Wikipedia

    en.wikipedia.org/wiki/Permittivity

    The formula for capacitance in a parallel plate capacitor is written as C = ε A d {\displaystyle C=\varepsilon \ {\frac {A}{d}}} where A {\displaystyle A} is the area of one plate, d {\displaystyle d} is the distance between the plates, and ε {\displaystyle \varepsilon } is the permittivity of the medium between the two plates.

  8. Quantum capacitance - Wikipedia

    en.wikipedia.org/wiki/Quantum_capacitance

    Therefore, as the capacitor charges or discharges, the voltage changes at a different rate than the galvani potential difference. In these situations, one cannot calculate capacitance merely by looking at the overall geometry and using Gauss's law. One must also take into account the band-filling / band-emptying effect, related to the density ...

  9. Ceramic capacitor - Wikipedia

    en.wikipedia.org/wiki/Ceramic_capacitor

    Additionally, class 2 capacitor measurements change because of aging. Different ceramic materials have differing losses over the temperature range and the operating frequency. The changes in class 1 capacitors are in the single-digit range while class 2 capacitors have much higher changes.

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