I'm wondering what do you gain when building a circuit with capacitors or inductos (or both?). I understand that they store charge, and when an AC current flows through them, they are constantly charging and discharging. What is the point of this? Why not just let current pass through without using these circuit elements? How does an inductor differ from a capacitor in this regard?
Also when powering the rails of an op-amp, you must have a positive and negative voltage applied to the respective terminals. When the input to an op-amp receives an AC voltage, I was told something like: When the input swings negative, the negative voltage of the rail cancels so you must do something like make your ground the point between 24V (if you had +12V and -12V for example). What does this mean, and why does it work this way?
I know these are alot of questions, but I'm very curious;Thanks!
Also when powering the rails of an op-amp, you must have a positive and negative voltage applied to the respective terminals. When the input to an op-amp receives an AC voltage, I was told something like: When the input swings negative, the negative voltage of the rail cancels so you must do something like make your ground the point between 24V (if you had +12V and -12V for example). What does this mean, and why does it work this way?
I know these are alot of questions, but I'm very curious;Thanks!