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 <https://en.wikipedia.org/wiki/Electrical_impedance#Inductor_and_capacitor>`__. .. py:currentmodule:: symplyphysics.laws.electricity.circuits.capacitor_impedance_from_capacitance_and_frequency .. py:data:: impedance :attr:`~symplyphysics.symbols.electrodynamics.electrical_impedance` of the capacitor. Symbol: :code:`Z` Latex: :math:`Z` Dimension: :code:`impedance` .. py:data:: angular_frequency :attr:`~symplyphysics.symbols.classical_mechanics.angular_frequency` of the alternating current. Symbol: :code:`w` Latex: :math:`\omega` Dimension: :code:`angle/time` .. py:data:: capacitance :attr:`~symplyphysics.symbols.electrodynamics.capacitance` of the capacitor. Symbol: :code:`C` Latex: :math:`C` Dimension: :code:`capacitance` .. py:data:: law :code:`Z = -I / (w * C)` Latex: .. math:: Z = - \frac{i}{\omega C}