Electrostatic potential energy of two charges via distance
==========================================================

Electrostatic potential energy due to two point charges depends on the inverse 
distance to the distance between the charges. Note that this is the energy of
interaction belonging to the entire system.

**Links:**

#. `Wikipedia <https://en.wikipedia.org/wiki/Electric_potential_energy#Electrostatic_potential_energy_of_one_point_charge>`__.

.. py:currentmodule:: symplyphysics.laws.electricity.electrostatic_potential_energy_of_two_charges_via_distance

.. py:data:: electrostatic_potential_energy

    Electrostatic potential :attr:`~symplyphysics.symbols.basic.energy` of system.

Symbol:
    :code:`U_E`

Latex:
    :math:`U_\mathbf{E}`

Dimension:
    :code:`energy`


.. py:data:: absolute_permittivity

    :attr:`~symplyphysics.symbols.electrodynamics.absolute_permittivity` of the medium.

Symbol:
    :code:`epsilon`

Latex:
    :math:`\varepsilon`

Dimension:
    :code:`capacitance/length`


.. py:data:: distance

    :attr:`~symplyphysics.symbols.classical_mechanics.euclidean_distance` between the point charges.

Symbol:
    :code:`d`

Latex:
    :math:`d`

Dimension:
    :code:`length`


.. py:data:: first_charge

    Value of the first :attr:`~symplyphysics.symbols.electrodynamics.charge`.

Symbol:
    :code:`q_1`

Latex:
    :math:`q_{1}`

Dimension:
    :code:`charge`


.. py:data:: second_charge

    Value of the second :attr:`~symplyphysics.symbols.electrodynamics.charge`.

Symbol:
    :code:`q_2`

Latex:
    :math:`q_{2}`

Dimension:
    :code:`charge`


.. py:data:: law

    :code:`U_E = q_1 * q_2 / (4 * pi * epsilon * d)`


    Latex:
        .. math::
            U_\mathbf{E} = \frac{q_{1} q_{2}}{4 \pi \varepsilon d}