Bryce Lynch
- Oct 3, 2017
- 2
- Joined
- Oct 3, 2017
- Messages
- 2
This isn't homework, I'm 47 & teaching myself, but it did seem like the best place for such a basic question. I'm having some mental block issue that's keeping me from understanding something that seem pretty basic and/or assumed.
If you assume, say, a basic RC low pass filter, why is the cap in series? I don't understand how the cap can impact the circuit. Resistor, then the union between, say, a speaker and the cap ... I don't understand how the cap can impact the signal the speaker gets?
I'm not talking about the property of a cap that makes it work with the resistor to perform a low pass ... I think I understand that. I think. What I don't get is how the cap can impact the circuit given the design.
https://en.wikipedia.org/wiki/Low-pass_filter#/media/File:1st_Order_Lowpass_Filter_RC.svg
I seem to be missing something very fundamental and/or have some hidden assumption I'm making ... but I don't know what it is.
If you assume, say, a basic RC low pass filter, why is the cap in series? I don't understand how the cap can impact the circuit. Resistor, then the union between, say, a speaker and the cap ... I don't understand how the cap can impact the signal the speaker gets?
I'm not talking about the property of a cap that makes it work with the resistor to perform a low pass ... I think I understand that. I think. What I don't get is how the cap can impact the circuit given the design.
https://en.wikipedia.org/wiki/Low-pass_filter#/media/File:1st_Order_Lowpass_Filter_RC.svg
I seem to be missing something very fundamental and/or have some hidden assumption I'm making ... but I don't know what it is.