Capacitance, Dielectric, and Energy Storage

These flashcards cover key concepts related to capacitance, dielectrics, and the function of capacitors in electrical systems.

Capacitance

The ability to acquire a certain amount of maximum charge by conductors close to one another, proportional to the potential difference V between the plates.

Farad

The unit of capacitance, equivalent to 1 C/1 V.

Microfarad (μF)

A capacitance unit equal to $1 imes 10^{-6} F$.

Picofarad (pF)

A capacitance unit equal to $1 imes 10^{-12} F$.

Capacitor

A device capable of storing charge, typically composed of a dielectric material between two conductive plates.

Dielectric

A non-conductive material placed between the plates of a capacitor.

Electric field

A field around charged particles that exerts force on other charged objects.

Gaussian Law

A principle used to determine the electric field created by a distribution of charge.

Charge Density (σ)

Charge per unit area, defined as σ = rac{dQ}{dA}.

Uniform Charge Distribution

A consistent distribution of charge over a surface, important for calculating electric fields.

Parallel Plates Capacitor

A type of capacitor with two parallel conductive plates separated by a distance.

Energy Storage in Capacitors

The process by which capacitors store electrical energy for various applications.