Explained! Impedance, Admittance, Reactance, Inductance, Capacitance, Conductance, and Susceptance

[@sumemario]

This 12min video helped me know more than my hours of book flipping research. thanks!

[@electricalpereview]

Glad it helped.

[@reddragon1037]

ageed

[@whiteowl9343]

This video is ever-green, helping people even five years after it was made.

[@kitkat91811]

Great video clearing up the different types of "-ance's". This has made me realize how important it is to read the problem carefully and be sure you know what you're being asked to solve.

[@chriskiesler5892]

Love this video, these terms can get very jumbled in your mind and that leads to misunderstanding. Nice to see them all explained in one concise video!

[@kaels2012]

This is the first Electrical PE Review video I watched when starting to study for the PE, and I think it's a great little review!

[@justinchristian6459]

This is a great video that takes many different electrical terms and makes them simple to understand and the relationship between them. Thanks Electrical PE Review!

[@rafiperez4546]

This video is great for understanding the different terms and also a reminder to be aware of which units you are working in.

[@art3m1s9]

Thanks. Better than an hour long online lecture which i slept all the way .

[@jboy6944]

Thank you for a God-sent video!!!

[@electricalpereview]

You are most welcome. Glad you found it helpful.

[@pmm8272]

Comparing all of these terms at once really cleared a lot of my confusion up!

[@electricalpereview]

Glad it helped

[@1pspgofan]

Best explanation ive seen. Im a final year ChemEng student, about to graduate and as a college requirement i have to do circuits and electronics and boy am I like a deer in headlights lmao. 10/10

[@electricalpereview]

Glad you found it helpful Hisham! Always enjoy helping other disciplines (non-electrical) of engineers get a better grasp on the material. It doesn't have to be scary or complicated. Good luck with your finals!

[@AJ-et3vf]

Awesome video sir! Thank you!

[@electricalpereview]

Hi AJ Glad you enjoyed it, thanks for the comment 👍

[@JuanpysGoProVideos]

Great explanation of the "-ance" type electrical components. Still confusing to memorize but it has helped in understanding. thanks Zach

[@ahmedsalih5404]

Super helpful in clarifying these differences.

[@rajkishorelipu]

Seriously, Thanks alot , cleared well this term

[@electricalpereview]

Glad it helped!

[@santoshsapkota4579]

simply, clearly ,easily .thanks alot

[@electricalpereview]

You are most welcome.

[@alisondecleene6940]

So many similar sounding terms that are easy to confuse. Thanks for clearing them up for me.

[@jazier460]

Thank you this is very Helpful

[@Lahari12346]

it's useful n Tmmrw is my xam... feeling gud to see this Tdy 😊

[@electricalpereview]

Glad it was helpful.

[@connorfisher1651]

Seems like it would be better to describe inductance and capacitance clearly then build up from there. It's easy for someone like me to get lost in terms without first building an ideological foundation from which to explain the phenomena which we are actually defining. Math is important to describe the dynamic relationships between the magnetic and dielectric fields; how they operate in relation to eachother, and within the confines of the circuit. That being said if we only focus on the equations without clearly explaining the dynamic process that it is actually ocurring then what good does the math do?

[@electricalpereview]

Hi Connor, thanks for your comment and feedback. This is just intended to be a short explainer video and introduction on the relationships between the different variables for those that are not yet familiar. We do explore the actual theory in much more detail in our online class for the NCEES® Power PE Exam.

[@hssaini31]

Truely informative video

[@SF-fb6lv]

That's not a doubleyou, that's an omega..., also siemens is 1/ohms. Siemens is the multiplicative inverse (not just inverse), or reciprocal of ohms.

[@md.taohidulalam1774]

Thanks a lot. God bless you

[@feozard7022]

I've learned more in twelve minutes than in all my semester, and I'm french

[@electricalpereview]

Thanks for the comment, I'm glad you found the explanation helpful.

[@xkcdguy2]

why inductor opposes sudden change in current? Ans: When the current flowing through an inductor changes, the time-varying magnetic field induces an electromotive force (e.m.f.) (voltage) in the conductor, described by Faraday's law of induction. According to Lenz's law, the induced voltage has a polarity (direction) which opposes the change in current that created it. As a result, inductors oppose any changes in current through them.

[@PM-eg7lw]

Thank u thank u thank u pls make more of those 🙏🙏🙏🙏🙏🙏

[@PradhyumnGedhar]

Best I could understand

[@henryshamaaon2259]

Good refresher for my exam, thanks

[@electricalpereview]

Glad you found it helpful, hope you did well on the exam.

[@dhawanbhavya]

Thank you very much sir for your help . This video really helped me alot for preparing my online test in this lockdown 🙏

[@phanindrak8891]

Simple & nice explination sir tnq

[@7314brperry]

This explanation has helped me out a lot!

[@eljefe6852]

Which is easy to use admittance or impedance? and why?

[@fpl8648]

Perfect explanation!!! Thank you!

[@electricalpereview]

Glad you enjoyed it.

[@BrianGriffin14]

Good explanation 👏 👍

[@IshanKhandelwal]

Very Useful video. Thanks..

[@electricalpereview]

Glad you enjoyed it.

[@ryanb1874]

What so impedance is the constant term, R multiplied by the " imaginary term " or is the reactance transient, or is it permanent, well, permanent like a standing wave, which leads to hysterisis loss ect, is that the right way to think about it.? Transient $o every quarter cycle, ?

[@matikhan7206]

very helpul, sir please make some more videos for ac circuit analysis

[@electricalpereview]

Thanks Mati.

[@manilakamboj]

Great video, glad to check your youtube channel

[@suziyousif]

very helpful! thank you!

[@electricalpereview]

Glad you found it helpful.

[@jynxdmonkey]

This is great thanks Zach.

[@mbenitez6722]

Love it! Thank you!

[@chandrajyothibojjapu9566]

Thank you so much sir

[@Simoun2Adol]

Thank you alot , this is very good review .

[@electricalpereview]

Happy to help.

[@edgardito2011]

Excellent explication. Grate teacher.

[@electricalpereview]

Glad you found it helpful

[@wickendarrow4779]

I concur! Only video containing them all!

[@mohamedfadll4827]

Thanks a lot !

[@KOCHMehulVerma]

Gr8 job !!

[@SivaSiva-uu5jr]

Thank you sir

[@simon1430]

Hi! Thank you for your help. I have a circuit that has impedance and admittance components, if I want to find the total input impedance, should I consider the admittance component by converting it into impedance and add it to the other impedances?

[@electricalpereview]

Hi Avocadoe, That is correct! Admittance and impedance values are used to describe the same type of element, they just expressed differently as the inverse of the other. If you need to find the total impedance, convert all admittance to impedance first before adding all impedances appropriately depending on if they are in series or parallel.

[@semihsenyuz7436]

The every word is useful.

[@electricalpereview]

Glad it helped Semih!

[@pinjinakehkithsinilemetomb5895]

please for more examples and solutions sir

[@jimmyromanous3674]

There is simple mathematics that transforms Impedance to Admittance. You have ignored this mathematics all together. But it was a good show 😀

[@electricalpereview]

The relationship between impedance and admittance starts at 8:21. The trig identities to convert between polar and rectangular form are not included in this video but we do have separate videos dedicated to it. This channel focuses on the NCEES Power PE Exam, and since the exam approved calculator can handle these conversions for you we typically omit them for simplicity.

[@nzeakonkeiru6806]

Thanks bro

[@annuchaudhary164]

thank you

[@spacedragon4831]

What happens to susceptance?

[@delonthompson9631]

I'm still confused a bit. Where did the j go in Xc and XL?

[@electricalpereview]

Don't worry, they didn't go anywhere. Sometimes they are left out when using the value in ohms to describe reactive impedance only, but are always included when using the value in complex math since they are an imaginary component.

[@aaronstark5828]

very helpful

[@electricalpereview]

Glad you found it helpful Aaron

[@amarsiael5951]

thanks

[@dwinovianto1250]

how can we get j in Reactance formulas? thanks anyway.

[@electricalpereview]

Hi Dwi I'm not sure I understand your question. Reactance is just the imaginary component of impedance, so it will either have a positive or negative "j" multiplied by the unit in ohms. For example, a 2 ohm inductor has a reactance of 2 ohms and an impedance of j2 ohms.

[@dwinovianto1250]

ur explanation is what i want. so, because reactance cant be measured so it is included in imaginary component. is it right?

[@walterbrown8694]

Good presentation - but the term you call "W" is not W, but omega the Greek letter used in electrical engineering for the constant 2pi. At 89, I've seen a lot of what seems to be a loss of rigor in many aspects of engineering and other fields of endeavor.

[@eduardb9604]

Hello there. I was trying to find the relationship between these two online, but I found out two completely opposite answers, and I'm wondering which one is the right one. Is B = -1/X or is B = 1/X ?

[@electricalpereview]

Hi Eduard. The polarity of the angle changes when you take the inverse. For a simple experiment try the following on your calculator: 1/(5

[@lonelymechanic3688]

thx. great help.

[@electricalpereview]

Glad it was helpful.

[@ultraplastikk]

who else is studying for exams?

[@ГалбаатарЭрдэнэбат]

And can you teach me why always XL is positive XC is negative?

[@nowrush]

Why is the reactance changing signs?

[@electricalpereview]

The polarity of reactance depends on if it is inductive reactance (-jX) or capacitive reactance (+jX)

[@phamhuutri1996]

can anyone help me answer what is immittance ?

[@electricalpereview]

Immittance can be used to refer to impedance or admittance: en.wikipedia.org/wiki/Immittance

[@SevenDeMagnus]

Cool, all the electronics fundamentals with 'ance' in the end. Happy Easter!!! Bestfriend Jesus is risen! God bless, Revelation 21:4

[@ГалбаатарЭрдэнэбат]

Where is the part of acceptance?

[@roygalaasen]

It comes right after reluctance.

[@nowrush]

What is VARS?!

[@electricalpereview]

VARS is the unit of both apparent and complex power and is not a type of impedance. Only impedance terms are covered in this video.

[@heronimousbrapson863]

Acronym for Volt Amp Reactance?

[@somendrakumarjain4144]

how does [R/(R^2+X^2)] = G ?

[@electricalpereview]

Hi Somendra, would you mind telling me the particular type of problem you are attempting to solve? That will help me answer you the best. Thank you!

[@allfive-starproducts]

❤️

[@electricalpereview]

Hi JMFX, glad you enjoyed the video thank you for your comment.

[@allfive-starproducts]

@@electricalpereview you're welcome😊

[@jesseyang3137]

pe god

[@electricalpereview]

Thanks for compliment Jesse, glad you found the video useful.

[@johnc4352]

Just a small critique; just say equal, don't say "equal to", it sounds like you're saying "equal 2". Example, it sounds like you're saying I = 2 V/Z.

[@electricalpereview]

Thanks for the feedback John

[@GenerationXerography]

He's saying "is equal to", which is absolutely appropriate.

[@wanyinleung912]

10:14 ... semens