Initial Values and Final Values || Second Order Circuit || Example 8.1 || Practice 8.1|| LCA 8.2(1)

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(English)Example 8.1 || Practice 8.1 || (Alexander)

t less than 0, t = 0, t greater than 0. (Alexander)|| Example 8.1 || Practice 8.1

ERROR: At time 14:13, the eq should be -v(0+) -vL(0+) +24 = 0.

Example 8.1: The switch in Fig. 8.2 has been closed for a long time. It is open at
t=0, Find: (a) , (b) , (c) .

Practice Problem 8.1: The switch in Fig. 8.4 was open for a long time but closed at t=0,
Determine: (a) (b) di(0 (c) i(), v()

The major problem students face in handling second-order circuits is finding the initial and final conditions on circuit variables.

There are two key points to keep in mind in determining the initial conditions.
The capacitor voltage is always continuous.
The inductor current is always continuous
In finding initial conditions, we first focus on those variables that cannot change abruptly, capacitor voltage and inductor current.

In this video we learn the basic technique of finding initial values and final values of second order circuits. Example 8.1 is discussed and practice problem 8.1 is solved from the book "Fundamentals of Electric Circuits"
ERROR: At time 14:13, the eq should be -v(0+) -vL(0+) +24 = 0.

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Sir i can't say in words how much helpful I found this video 👏👏👏👍👍🙏🙏🙏🙇‍♀️🙇‍♀️🙇‍♀️🙇‍♀️

rajashruthim
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Best teacher i've ever seen.
thanks a lot, sir

ramim
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ALLAH app koo es KAA ajar dee sir
Videos banatay rahay sir

harismasoom
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A-O-A!
Thank You Sir!
This video is very helpful.

tanzeelakhalid
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its realy helpful but in the last example i think VL is negative

MoustaphaHamoud
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your vids are very helpful thank you sir be continue😍😍

shnyarawat
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I am facing difficulty in solving unsolved question No. 14.39 of the Sadiku, 7th edition. It's a tank circuit/parallel with R and L in parallel with C. Given is the source current and we need to find the resonant frequency. I believe we should solve for Admittance and equate the Imaginary part of admittance to zero. 
However, I do not know where am I going wrong, I am not getting the answer. 
Could you please post a video on it.

ss
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14:13 solving for inductor voltage we get -20 insted of +20

shashanksingh
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sir the practice problem is source driven parallel rlc?

AbdullahEjaz