The voltage across the terminals of a 250 nF capaci- tor is S50 V, (Aje-4000r + A2te 4000) V, t2 0. The initial current in the capacitor is 400 mA. As- sume the passive sign convention. a) What is the initial energy stored in the capacitor? b) Evaluate the coefficients A and A2. c) What is the expression for the capacitor current?

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A:

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A: As per company guidelines we can solve only first three sub parts kindly post another parts…

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A:

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).