Hello, I have used the forums regularly, but only as an observer who has benefited from the knowledge. However, i'm trying to find an answer to a question that is no doubt simple.
When deriving the analytical solution for a parallel RC complex impedance there is a method of calculating the real and imaginary components of the complex impedance:
Real:
(R x XC^2) / (R^2 + X^2)
Imaginary:
(R^2 x XC) / (R^2 + X^2)
As far as I am aware, these values are measured in Ohms, so what exactly do they represent? If we put some figures in it may help me to explain.
Say R = 5Ω, C = 100uF and f=100Hz.
Therefore, XC = 15.9Ω
Now, according to the above formulas the real and imaginary parts are;
Real = 4.55Ω
Imag = 1.42Ω
How can the real part be less than the resistance (real part of the impedance?) And if it is, what exactly does it mean?
Or are they not measured in ohms, but rather a ratio?
I hope this post makes sense. Thank you.
When deriving the analytical solution for a parallel RC complex impedance there is a method of calculating the real and imaginary components of the complex impedance:
Real:
(R x XC^2) / (R^2 + X^2)
Imaginary:
(R^2 x XC) / (R^2 + X^2)
As far as I am aware, these values are measured in Ohms, so what exactly do they represent? If we put some figures in it may help me to explain.
Say R = 5Ω, C = 100uF and f=100Hz.
Therefore, XC = 15.9Ω
Now, according to the above formulas the real and imaginary parts are;
Real = 4.55Ω
Imag = 1.42Ω
How can the real part be less than the resistance (real part of the impedance?) And if it is, what exactly does it mean?
Or are they not measured in ohms, but rather a ratio?
I hope this post makes sense. Thank you.