iR ic R c Vo Figure 8.1 Full Alternative Text
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).
The circuit elements in the circuit
are R=200 Ω, L=50 mH, and C=0.2 μF. The initial inductor current is
−45 mA and the initial capacitor voltage is 15 V.
1. Calculate the initial current in each branch of the circuit.
2. Find v(t) for t≥0.
3. Find iL(t) for t≥0.
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