Resistance from temperature
===========================

The resistance depends on the temperature. For different materials, the value of the
temperature coefficient and resistance at zero degrees celsius may differ.

**Notation:**

#. :math:`T_\text{std}` (:code:`T_std`) is :attr:`~symplyphysics.quantities.standard_conditions_temperature`.

**Links:**

#. `BYJU's, similar formula for resistivity <https://byjus.com/physics/resistivity-temperature-dependence/>`__.

.. py:currentmodule:: symplyphysics.laws.condensed_matter.resistance_from_temperature

.. py:data:: resistance

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

Symbol:
    :code:`R`

Latex:
    :math:`R`

Dimension:
    :code:`impedance`


.. py:data:: resistance_initial

    :attr:`~symplyphysics.symbols.electrodynamics.electrical_resistance` at :attr:`~symplyphysics.quantities.standard_conditions_temperature`.

Symbol:
    :code:`R_0`

Latex:
    :math:`R_{0}`

Dimension:
    :code:`impedance`


.. py:data:: temperature_coefficient

    Temperature coefficient of resistance.

Symbol:
    :code:`a`

Latex:
    :math:`a`

Dimension:
    :code:`1/temperature`


.. py:data:: temperature

    :attr:`~symplyphysics.symbols.thermodynamics.temperature`.

Symbol:
    :code:`T`

Latex:
    :math:`T`

Dimension:
    :code:`temperature`


.. py:data:: law

    :code:`R = R_0 * (1 + a * (T - T_std))`


    Latex:
        .. math::
            R = R_{0} \left(1 + a \left(T - T_\text{std}\right)\right)