PHYSICAL QUANTITY

Electrical capacity: formulas and units of measurement

Electrical capacity: symbol C, unit F. Formulas and explanations for Electricity, Oscillations and waves.

C

\text{F}

farad

KEY CONNECTIONS

Formulas

C = \frac{q}{U}

C = q / U

C = ε_{0} ε \frac{S}{d}

C = ε₀εS / d

W = \frac{C U ^{2}}{2}

W = CU² / 2

W = \frac{q ^{2}}{2 C}

W = q² / (2C)

T = 2 π L C

T = 2π√(LC)

NOTATION

$C$: Electrical capacity is the ability of a conductor or capacitor to accumulate charge.
$q$: Electric charge is a quantity that determines the participation of a body in electrical interaction.
$U$: Electric voltage is the work done by the electric field when transferring a unit charge.
$\varepsilon_0$: Electric constant is a coefficient characterizing the electric field in a vacuum.
$\varepsilon$: Dielectric constant is a characteristic of the influence of the medium on the electric field.
$S$: Area is the size of a surface or cross section.
$d$: The distance between the plates is the gap between the plates of the capacitor.
$W$: Electric field energy is the energy stored by an electric field or a capacitor.
$T$: A period is the time of one complete repetition of a process.
$L$: Inductance is the ability of a conductor to create a magnetic field when current passes.

THEORY

PRACTICE