# Define a steady state current ?

1. Mar 6, 2015

### devd

For a steady state current, is $\frac{dI}{dt}=0$ or is $\frac{\partial I}{\partial t} = 0$?

2. Mar 6, 2015

### Staff: Mentor

Steady state anything means partial derivative with respect to time is 0. Often the quantity of interest is only a function of time, so you can change it to a normal derivative.

3. Mar 6, 2015

### sophiecentaur

I think you'd need to specify the situation that you would be describing in order to make the choice of which to use.