- #1
ViolentCorpse
- 190
- 1
Homework Statement
Find vL(0+)
Homework Equations
V=IR
The Attempt at a Solution
I have an exam tomorrow and so I'm in a bit of a hurry so please excuse the horrible drawing.
The problem I'm having with this question is a conceptual one. I've found vL in this this circuit by first finding Vc(0-), because Vc(0-)=Vc(0+)=vL(0+) using voltage-divider rule: V=12*(1)/(6)=2V.
Now, I think L and C have opposite polarities by looking at the diagram so if Vc=2 V, vL must be = -2 V
The trouble I'm having is that I'm unable to make a physical interpretation of what's happening here. The charged capacitor will try to force a current through the inductor in a direction opposite to that in which it is already flowing. How will the inductor offset this opposition from the capacitor, since it cannot allow any instantaneous change in its current?
Thanks a lot for your time! :)