Is your equation meant to be i = 20*e^(-5000t)?
If so you probably want to find q(t) by integrating over the appropriate region of time.
So here is my question:
The currents of the terminals in the terminals of the element in Fig. 1.5 (I attached a picture) is:
i = o, t < 0
i = 20 e -5000 t ≥ 0
Calculate the total charge (in microcoulombs) entering the elemnet at its upper terminal.
I am a bit confused because I know the forumla i = dq/dt, but I am not given any "t" here.
Can anyone help? Thank you very much!