Voltage/Current of inductor and capactiors 2nd order circuits

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SUMMARY

The discussion centers on the analysis of a second-order circuit involving inductors and capacitors, specifically addressing the voltage across an inductor at time t=0+. The participant queries the voltage of 3.816V across the inductor despite the current being 0A. The conversation emphasizes the application of Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL) to derive the inductor voltage at t=0+. Participants are encouraged to share their equations and solutions to clarify the voltage behavior in this circuit scenario.

PREREQUISITES
  • Understanding of second-order circuits
  • Familiarity with Kirchhoff's Current Law (KCL)
  • Knowledge of Kirchhoff's Voltage Law (KVL)
  • Basic principles of inductors and capacitors in electrical circuits
NEXT STEPS
  • Review the derivation of inductor voltage using KVL in second-order circuits
  • Study the transient response of RLC circuits at t=0+
  • Explore simulation tools like LTspice for circuit analysis
  • Learn about the impact of initial conditions on circuit behavior
USEFUL FOR

Electrical engineering students, circuit designers, and anyone studying transient analysis in second-order circuits will benefit from this discussion.

Larrytsai
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http://www.ece.ubc.ca/~shahriar/eece251_notes/eece251_assignment6.pdf

Question 4 on the link.

I understand why the top inductor to the left has i = 0A but I don't understand why it has a voltage of 3.816V, can anyone care to explain?
 
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Larrytsai said:
http://www.ece.ubc.ca/~shahriar/eece251_notes/eece251_assignment6.pdf

Question 4 on the link.

I understand why the top inductor to the left has i = 0A but I don't understand why it has a voltage of 3.816V, can anyone care to explain?

When you work out the voltage across the inductor at t=0+, what do you get for the voltage? Can you show us your KCL or KVL equations and your solution for the inductor voltage at t=0+?
 
Last edited by a moderator:

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