Analysis of Complex Impedances in Parallel (Pt. 1)

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Engineers Academy

Engineers Academy

Күн бұрын

Пікірлер: 14
@Alyx_Muffinton
@Alyx_Muffinton 13 күн бұрын
Thank you so much for actually working out these examples, unlike my textbook.
@irishchocolate3872
@irishchocolate3872 2 жыл бұрын
It is always important to know the steps in solving these problems. To be able to actually do the math. Todays calculators that have complex number capability built into them basically do everything for you. Thank you for taking the time to show us how these problems are worked out.
@EngineersAcademyLTD
@EngineersAcademyLTD 2 жыл бұрын
Glad you found it helpful
@אוריהרשקוביץ-ע3ט
@אוריהרשקוביץ-ע3ט Жыл бұрын
Hello. You are doing a great job. Explains complex mathematics in a simple and clear manner. Well done, I'm practicing according to your videos, and it's becoming clearer to me. I wish you health and success, all the best.
@bekiryufka
@bekiryufka Жыл бұрын
Very straightforward. Thanks!
@johnfernandez4985
@johnfernandez4985 Жыл бұрын
best vid on it so far
@tailcatch4270
@tailcatch4270 Жыл бұрын
This was incredibly helpful, thank you so much.
@abdullahmoallim4486
@abdullahmoallim4486 Жыл бұрын
that was so helpful thanks
@GaganaSindhu-d1d
@GaganaSindhu-d1d 3 ай бұрын
Thank you sooooo much
@spelunkerd
@spelunkerd 2 жыл бұрын
After doing a question I often ask myself if the result is reasonable. In the last example after 19:00, I am scratching my head to realize that when you add an inductor in parallel with a capacitor, you may effectively increase the capacitance! Are there any 'sniff test' rules for these kind of parallel questions to help decide if your answer is reasonable?
@EngineersAcademyLTD
@EngineersAcademyLTD 2 жыл бұрын
Remember that the formula for the reactance of a capacitor is -1/(2 pi f C) So though you are right in that the magnitude of the "reactance" is increased (negative), this actually makes the effective "capacitance" smaller, because of the above inverse relationship.
@shivampithadia
@shivampithadia 2 жыл бұрын
Thank you.
@dalenassar9152
@dalenassar9152 2 жыл бұрын
With these answers involving "j", how do we convert them into something that can have an actual answer to get a real value for the resistance that we can use to express an actual answer, even in terms of frequency (Hz).
@EngineersAcademyLTD
@EngineersAcademyLTD 2 жыл бұрын
Remembering that a positive j component represents an inductive reactance (XL) and a negative j component represents a capacitive reactance (XC), these reactances could be converted into equivalent component values if the frequency is known. A purely real result is not possible, but it is sometimes acceptable to find the absolute value (or magnitude in polar form) of the complex number, using a resistor of this value as an "equivalent", since the absolute impedance would be the same.
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