12.26 In the circuit shown in Fig. 12.16e, the dc current source is replaced with a sinusoidal source that delivers a current of 1.2 cos t A. The circuit components are R=12, C = 625 mF, and L = 1.6 H. Find the numerical expression for V(s). %3D Iac R L. Figure 12.16 AA parallel RLC circuit.

Just like resistors, impedance values can be combined in series or in parallel. We combine them in the same way as combining resistors, i.e., for the series connection: Zeg Z1+22+ Z3+.... For the parallel connection: Zeq = (Z+Z+Z3+...) What is the equivalent impedance of the following circuit? (Hint: you can use scientific calculator or MatLab to perform calculations involving complex numbers.) L 50 £2 300 1000 MO 400 200 102.2+19.8j O 102.2-19.8j -102.2+19.8j O-102.2 19.8j

find Vth and Rth 8252 39 503 5 v M -AML. 330-2