- #1
dsdsuster
- 30
- 0
Hi guys,
I have a quick question I think. Let's consider an RC differentiator driven by a 0-5V square wave which is initially at 0V. When the input voltage suddenly makes the transition to 5V one side of the capacitor will jump to 5V. I've read that the other side (side with the resisitor) will follow, the explanation being that the capacitor cannot acquire a voltage difference instantly.
Can anyone explain what is physically happening in this case? My thoughts are that since electric field lines flow out of positive charge, and both sides of the capacitor suddenly jump from 0 to 5V, positive charge is simultaneously rushing in on both sides. Not sure why this would happen.
Thank You
I have a quick question I think. Let's consider an RC differentiator driven by a 0-5V square wave which is initially at 0V. When the input voltage suddenly makes the transition to 5V one side of the capacitor will jump to 5V. I've read that the other side (side with the resisitor) will follow, the explanation being that the capacitor cannot acquire a voltage difference instantly.
Can anyone explain what is physically happening in this case? My thoughts are that since electric field lines flow out of positive charge, and both sides of the capacitor suddenly jump from 0 to 5V, positive charge is simultaneously rushing in on both sides. Not sure why this would happen.
Thank You