Lecture 18

Lecture 18 - kcos and B = sin. Lecture 18 figures 2 Fig....

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Lecture 18 figures 1 Fig. 18-1: A lossless circuit. Fig. 18-2: A solution x(t) to the differential equation that governs the current and voltage in the undamped second-order circuit. A -A B -B k θ Fig. 18-3: A sinusoidal signal x(t) can be expressed as x(t) = Acos(ωt) + Bsin(ωt) or k cos(ωt - θ). These forms are equivalent iff A =
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Unformatted text preview: kcos and B = sin. Lecture 18 figures 2 Fig. 18-4a: The solution v(t) = 2.5 V cos(t) 10 V sin(t). Fig. 18-4b: The solution i(t) = 50 mA cos(t) + 12.5 mA sin(t). Fig. 18-4c: The energy stored by the inductor W L (t) and then energy stored by the capacitor W C (t). The total energy W L (t) + W C (t) is constant....
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Lecture 18 - kcos and B = sin. Lecture 18 figures 2 Fig....

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