RLC Circuit Question For final exam

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SUMMARY

The discussion focuses on solving an RLC circuit problem for a final exam, specifically determining the currents i1, i2, and I using Kirchhoff's rules. Participants emphasize the importance of understanding the relevant equations for capacitors and inductors, as well as the need to apply Kirchhoff's current law (KCL) effectively. The user attempts to derive equations but struggles with questions regarding the current I at the initial moment and after a long time. The conversation highlights the necessity of reviewing foundational concepts and equations related to RLC circuits.

PREREQUISITES
  • Understanding of Kirchhoff's laws, particularly Kirchhoff's current law (KCL)
  • Familiarity with RLC circuit components: resistors, inductors, and capacitors
  • Knowledge of differential equations as they apply to circuit analysis
  • Ability to interpret and apply circuit equations from textbooks or notes
NEXT STEPS
  • Review the equations governing capacitors and inductors in RLC circuits
  • Practice solving RLC circuit problems using Kirchhoff's laws
  • Learn about transient analysis in RLC circuits
  • Explore the use of simulation tools like LTspice for circuit analysis
USEFUL FOR

Students preparing for exams in electrical engineering, particularly those focusing on circuit analysis and RLC circuits. This discussion is beneficial for anyone looking to strengthen their understanding of circuit behavior over time.

Hapusss
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Homework Statement


[/B]
(a) Write down sucient number of equations to determine all the
currents i1, i2 and I (you do not need to solve the equations)
(b) At the instant the battery is turned on, what is the current I
running through the circuit?
(c) After waiting for a suciently long time after the battery is turned
on, what is the current I running through the circuit?
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Homework Equations


i get 4 equation. You can get them down of the page

The Attempt at a Solution


To start, I pick 2 ways and i tried kirchhoff rule and for current i1+i2=I. dq/dt=i1 these are my prediction. İf u have a look my work upload at down, u ll understand my solution attempt.[/B]
 
Last edited:
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Hi Hap, :welcome:

Not a very good start. What does the relevant equation stand for ?
How about checking with your notes or textbook to find what equation describes a capacitor ? Idem inductance ?

Did you check the PF guidelines ? 'Don't know where to start' kind of isn't good enough...
 
I tried to get quick response but it didnt work so i tried somethings. Here is some works but i can't get question b and c. Maybe i can get little bit help from you guys.

For 2nd equation: there should be mines V.

IMG_5434.JPG
 

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