Current is charge derivative
============================

The instantaneous electric current, or simply the *electric current*, is a physical quantity
defined as the time derivative of the flowing charge.

**Links:**

#. `Wikipedia, second equation <https://en.wikipedia.org/wiki/Electric_current#Metals>`__.

.. py:currentmodule:: symplyphysics.definitions.current_is_charge_derivative

.. py:data:: time

    :attr:`~symplyphysics.symbols.basic.time`.

Symbol:
    :code:`t`

Latex:
    :math:`t`

Dimension:
    :code:`time`


.. py:data:: current

    Electric :attr:`~symplyphysics.symbols.electrodynamics.current` as a function of time.

Symbol:
    :code:`I(t)`

Latex:
    :math:`I{\left(t \right)}`

Dimension:
    :code:`current`


.. py:data:: charge

    Electric :attr:`~symplyphysics.symbols.electrodynamics.charge` as a function of time.

Symbol:
    :code:`q(t)`

Latex:
    :math:`q{\left(t \right)}`

Dimension:
    :code:`charge`


.. py:data:: definition

    :code:`I(t) = Derivative(q(t), t)`


    Latex:
        .. math::
            I{\left(t \right)} = \frac{d}{d t} q{\left(t \right)}