Capacitor impedance from capacitance and frequency¶

The impedance of the capacitor is a purely imaginary reactive impedance which is inversely proportional to its capacitance. Note that the resistance of the capacitor is infinite, i.e. it is considered to be an opened connection.

Links:

Wikipedia, second formula.

impedance¶

electrical_impedance of the capacitor.

Symbol:: Z
Latex:: \(Z\)
Dimension:: impedance

angular_frequency¶

angular_frequency of the alternating current.

Symbol:: w
Latex:: \(\omega\)
Dimension:: angle/time

capacitance¶

capacitance of the capacitor.

Symbol:: C
Latex:: \(C\)
Dimension:: capacitance

law¶

Z = -I / (w * C)

Latex:: \[Z = - \frac{i}{\omega C}\]