40 kN
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).
*Assume that the switch in the circuit in (Figure 1) has been in position a for a long time and that at t = 0 it is moved to position b.*
Pt A. Find vC(0+)
Pt B. Find vC(∞)
Pt C. Find τ for t>0
Pt D. Find i(0+)
Pt E. Choose the correct expression for vC(t),t≥0
Pt F. Find i(t),t≥0+
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