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Hi,
I am having a bit of difficulty fully grasping the concept of capacitors as electronic elements.
Consider a simple parallel-plate capacitor:
- My first question is, if there is a resistor added to the circuit element containing the capacitor, how would this affect the capacitance? I postulate that capacitance (ability of capacitor to hold charge) would decrease as the resistor would "suck" charge (current) and dissipate it as heat, thus less charge return on capacitor → inefficient capacitor. Am I correct with my conceptual understanding of this?
- Secondly, I know the "q vs time" graphs for a discharging capacitor is an exponential decay - but how would "voltage vs time" and "current vs time" graphs look like for a discharging capacitor? Would they also depict decay? Why or why not?
I would really really appreciate it if someone could boil this concept down for me. I have missed quite a number of questions where I counterintuitively selected an answer which confused me even more
Thanks,
I am having a bit of difficulty fully grasping the concept of capacitors as electronic elements.
Consider a simple parallel-plate capacitor:
- My first question is, if there is a resistor added to the circuit element containing the capacitor, how would this affect the capacitance? I postulate that capacitance (ability of capacitor to hold charge) would decrease as the resistor would "suck" charge (current) and dissipate it as heat, thus less charge return on capacitor → inefficient capacitor. Am I correct with my conceptual understanding of this?
- Secondly, I know the "q vs time" graphs for a discharging capacitor is an exponential decay - but how would "voltage vs time" and "current vs time" graphs look like for a discharging capacitor? Would they also depict decay? Why or why not?
I would really really appreciate it if someone could boil this concept down for me. I have missed quite a number of questions where I counterintuitively selected an answer which confused me even more
Thanks,