Overview
The APBQA circuit of the attached figure, has successively in the four branches a resistance R, a capacity C, another resistance R and another capacity C. An alternating voltage \overline{V} of pulsation ω is applied between A and B.
***Calculate and detail all the steps followed
Determine:
a) The voltage \left(\overline{V}\right)^' (defined as the potential difference between P and Q)
b) Derive an expression for \frac{\left(\overline{V}\right)^'}{\overline{V}} as a function of RC and ω.