4. In the circuit shown in Figure P4, let R1 = 22, R2 = 12, R3 = 22, R4 = 22, Rs = 12, C = 0.2F, L = 2H, v(0) = 3V, i(0) = 3A, vs(t) = 4 u(t), Vp = Vo %3D %3D %D %3D %3D (a) Draw the circuit in the s-domain for t> 0. (b) Write a node equation at node a by summing the currents leaving node a. (c) Write a node equation at node b by summing the currents leaving node b. (d) Find Vo(s) in the s-domain. (e) Find vo(t) in the time domain. R1 Va R3 Vb i(0-) a + R2 v (t) R4 R5 Vo v (0-) = C

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Sinusoids And Phasors

Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.

Circuit Theory

Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).