PHYSICAL QUANTITY

Capacitance: formulas and units of measurement

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

CC\text{Ф}farad

KEY CONNECTIONS

Formulas

C=\frac{q}{U}C = q / U

C=\varepsilon_0\varepsilon\frac{S}{d}C = ε₀εS / d

W=\frac{CU^2}{2}W = CU² / 2

W=\frac{q^2}{2C}W = q² / (2C)

T=2\pi\sqrt{LC}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