Steepness of volt-ampere characteristic of vacuum diode
=======================================================

The steepness of the volt-ampere characteristic is generally equal to the voltage
derivative of the current. For a vacuum diode, it can be calculated if the diode
parameter and the voltage between the anode and cathode are known.

..
    TODO: find link

.. py:currentmodule:: symplyphysics.laws.electricity.circuits.diodes.steepness_of_volt_ampere_characteristic_of_vacuum_diode

.. py:data:: steepness

    Steepness of the volt-ampere characteristic of the vacuum diode.

Symbol:
    :code:`S`

Latex:
    :math:`S`

Dimension:
    :code:`current/voltage`


.. py:data:: diode_constant

    :attr:`~symplyphysics.symbols.electrodynamics.diode_constant`.

Symbol:
    :code:`g`

Latex:
    :math:`g`

Dimension:
    :code:`current/voltage**(3/2)`


.. py:data:: anode_voltage

    :attr:`~symplyphysics.symbols.electrodynamics.voltage` between cathode and anode.

Symbol:
    :code:`V`

Latex:
    :math:`V`

Dimension:
    :code:`voltage`


.. py:data:: law

    :code:`S = 3 * g / 2 * sqrt(V)`


    Latex:
        .. math::
            S = \frac{3 g}{2} \sqrt{V}