Capacitive-reactance magnitude

Tags

• ca
• AC and phasors
• Electronics
• Phasors
• physics
• Electronics formula
• physics formula

Detail

Variables

• $V_p$peak (V)
• $V_{\mathrm{rms}}$RMS (V)
• $\omega$rad/s
• $f$Hz
• $\phi$rad
• $Z,X$Ω
• $Y$S.

Conditions

• Sinusoidal steady state; RMS phasors unless a peak is stated.

Intuitive explanation

For “Capacitive-reactance magnitude”: |X_C|=1/(ωC) is the magnitude; with Z=R+jX, X_C=-1/(ωC) and Z_C=-j/(ωC).

Conventions

• V, rad/s, Ω or S according to the left-hand side

Related formulas

• Related

  Phasor Ohm's law

  $$\underline V=Z\underline I$$
  Open formulaOpen in section

• Related

  Inductive reactance

  $$X_L=\omega L$$
  Open formulaOpen in section

• Related

  Ohm's law

  $$V=IR$$
  Open formulaOpen in section

• Related

  Series capacitors

  $$\frac{1}{C_{\mathrm{eq}}}=\sum_i\frac{1}{C_i}$$
  Open formulaOpen in section