- #1
Ithryndil
- 142
- 0
Homework Statement
A current pulse is fed to the partial circuit shown in Figure P32.25. The current begins at zero, then becomes Imax = 7.0 A between t = 0 and t = 200 µs, and then is zero once again. Determine the current in the inductor as a function of time. Let L = 1.0 mH and R = 100 . (Use t as appropriate.) Figure
Homework Equations
...
The Attempt at a Solution
I know I need to use Kirchhoff's rules for this. I am not quite sure how to go about setting this up...I know I will have:
Emf - IR - L(dI/dt) = 0
Since there is no Emf this becomes:
L(dI/dt) = - IR
I am not sure where to go from here. I have the correct answer for [tex]0\leq[/tex] [tex]t[/tex] [tex]\leq200\mu s[/tex] being:
[tex]I(t) = 7(1 - e^{-100000t}) [/tex]
I also am not sure how to proceed with finding the current for t > 200 microseconds.
Last edited: