"w" still includes frequency, since w = 2 x Pi x fIf I use w instead of frequency, I am wondering this is correct.
I still don't understand. How is voltage involved in impedance calculation?Eliminating the voltage meant that I could ignore the voltage when calculating the impedance.
It is very easy thing.I am wondering how to handle the voltage.
oh then can i consider voltage as short circuit? right?It is very easy thing.
Your problem is no more than Thevenin Equivalent circuit theorem.
We understand. But once you have made a schematic, you have progressed a lot.I am not sure because it is confusing.
I do not follow your calculation in post #3. Can you please work out in detail?Like the above calculation?
Does that mean that the impedance cannot be obtained because this circuit does not represent the whole part? If I give the value of each resistor or capacitor, can I find the impedance?The usual tactic is to imagine all supply rails are 0v. Then calculate time constants, series branches, parallel branches, etc. Because time constants don't change regardless of supply voltage, whether capacitors are charging or discharging.
The top and bottom ends of your schematic should have a wire joining them, if that's the entire circuit.
It looks right.The picture is how I calculated it
Since your diagram is the main focus, then what I said is not absolutely necessary about the top and bottom ends of your schematic should have a wire joining them.Does that mean that the impedance cannot be obtained because this circuit does not represent the whole part? If I give the value of each resistor or capacitor, can I find the impedance?
What is the purpose of your impedance calulation ?The total impedance was calculated using the capacitor's impedance of 1 / jwc and the resistance of R.
The picture is how I calculated it.View attachment 158778
One important point. Impedance Z is usually a function of w (i.e., 2*pi*f) but not of time. You may be tempted to consider that Z varies during a capacitor charge or discharge process but that is not true.Does that mean that the impedance cannot be obtained because this circuit does not represent the whole part? If I give the value of each resistor or capacitor, can I find the impedance?
What's confusing about it? Just include the impedance of the voltage or current source of the circuit for your total calculations. Impedance is only defined for sinusoidal excitations.I want to find the impedance in this circuit.
Is it possible to calculate the capacitor as 1 / jwc after removing the voltage from this circuit?
I am not sure because it is confusing.
Thank you for letting us know how to do the calculations with and without the dashed part of the circuit.View attachment 158756