7. The two switches in the circuit below are synchronized. The switches have been closed for a long time before opening at t=0. Find the inductor current and voltage after the switches are opened. t = 0, 6 H (1 )105 mA 3 1 kN 3 4 kn 80 k2 20 k2

7. The two switches in the circuit below are synchronized. The switches have been closed for a long time before opening at t=0. Find the inductor current and voltage after the switches are opened. t = 0, 6 H (1 )105 mA 3 1 kN 3 4 kn 80 k2 20 k2

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.3P

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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).

Question

7. The two switches in the circuit below are synchronized. The switches have been closed
for a long time before opening at t=0. Find the inductor current and voltage after the
switches are opened.
6 H
105 mA 1 kN
4 k2
20 k2
80 k2

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