Lecture 15

Lecture 15 - s after the switch is thrown. Fig. 15-6: The...

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Lecture 15 figures 1 Fig. 15-1: A simple resistor- inductor (R-L) circuit with an initial current i(0) = I 0 . Fig. 15-2: The current i(t) decreases exponentially from I 0 at t=0 to zero as t gets large. Fig. 15-3: An exponential function decreases by a factor 1/e = 0.368 during every interval of τ. A tangent to an exponential function at any time t 0 crosses the t-axis at t 0 + τ. Fig. 15-4: A simple resistor- capacitor (R-C) circuit with an initial voltage v(0) = V 0 .
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Lecture 15 figures 2 Fig. 15-5: Determine the energy stored in the inductor of this circuit 20 µ
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Unformatted text preview: s after the switch is thrown. Fig. 15-6: The switch opens at t = 0. We want to find (a) i L (0-), (b) i L (0 + ), (c) R th as seen by the inductor for t>0, (d) , and (e) i L (t) valid for t>0. We will reduce this circuit to a simple RL circuit in order to determine i L (t). Fig. 15-7: A circuit containing a dependent source. We want to determine the current i 1 (t) for t>0. Use i 1 (0) = 5 A. Fig. 15-7b: We have removed the inductor from the circuit of Fig. 15-7, and must reduce the remaining network to its Thvenin equivalent....
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Lecture 15 - s after the switch is thrown. Fig. 15-6: The...

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