EngiRef / Electrical Engineering Formula

Capacitive Reactance

Capacitive Reactance: Opposition to current by capacitor. An AC Circuits formula in electrical engineering. Variables Xc, f and C, each with SI and imperial…

AC Circuits

Specification

Name
Capacitive Reactance
Discipline
electrical
Category
AC Circuits
LaTeX
X_C = \frac{1}{2 \pi f C} = \frac{1}{\omega C}
Description
Opposition to current by capacitor
Conditions
Sinusoidal steady-state
Can solve for
Xc, f, C
Tags
capacitance, reactance, frequency, ac

Variables

Variables for Capacitive Reactance
SymbolNameUnitSi Unit
XcCapacitive ReactanceΩΩ
fFrequencyHzHz
CCapacitanceFF