Resonance in Parallel RLC Circuit Explained

In this video, you will learn about the Resonance in Parallel RLC circuit.
So, in this video, you will learn the following things for the parallel Resonant circuits.
1) Resonant Condition
When the inductive reactance and parallel reactance is same in the circuit (XL=XC) then voltage and current in the circuit will be in phase. And the impedance of the circuit will be maximum and purely resistive.
2) Resonant frequency:
The Resonant frequency w = 1/(sqrt(LC))
3) Quality Factor:
Quality factor defines the how the circuit is able to select or reject one particular frequency.
The larger the value of this Q-factor, the better will be the selectivity of the circuit.
For parallel RLC circuit, Q= R/Xc =R/XL
So, Q factor is directly proportional to the value of resistance in the circuit.
The larger the value of resistance in the circuit, the better will be the selectivity of the circuit.
4) Bandwidth:
The bandwidth of the circuit is defined as the difference between the 3 dB frequencies.
For Parallel resonant circuit bandwidth can be defined as,
B.W= 1/(RC)
In terms of the Q-factor Bandwidth can be defined as
B.W= w/Q or Q= w/B.W
So, in this video, the equations for this resonant frequency, Quality Factor and bandwidth have also been derived.
So, Parallel Resonant Circuit has following characteristics:
1) The impedance of the circuit is maximum at resonance.
2) The current in the circuit will be minimum at resonance.
3) Parallel Resonant Circuit will act a Band Stop Filter, as it rejects one frequency and passes all other frequencies. And that's why it is also known as Rejector circuit.
4) The circuit will act as Current Magnifier, as the current through inductor and capacitor gets magnified Q times at resonant frequency.
The timestamps for the different topics in the video is given below:
0:42 Resonance condition in Parallel RLC Circuit
3:30 Derivation of resonant frequency for Parallel RLC Circuit
6:30 Understanding the Resonant curve for Parallel RLC Circuit
8:00 Quality Factor of parallel Resonant circuit
11:11 Bandwidth of Parallel Resonant Circuit and its derivation
17: 55 Current Magnification in Parallel Resonant Circuit
18:58 Summary
This video will be helpful to all students of science and engineering in understanding the concept of resonance in parallel RLC circuit.
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[@oldmelodybyprof.maheshjha3197]

I found a problem in one of sample paper of jee main about accept or rejector My teacher said it is out of scope of mains but the way you teach I understood almost everything Thank you

[@abhijithanilkumar4959]

Indians are like what more formulas should I eat up to get more marks

[@kumudkumar904]

Cleared all my doubts no body explained this topic in so depth thank you very much

[@sumanthmetta8292]

Super sir i have doubt on this topic ihave seen so many videos but I can't understand them u made me to understand clearly thanks sir

[@RSuarez66]

Thank you so much for making this great video in English. I have seen very good videos, but in Hindi, which I cannot understand.

[@khandokernuzhatrafaislam3516]

BEST VIDEO ON THIS TOPIC. I WANT TO BUY YOU A MEAL

[@akhileshr2450]

One of the best channels for electronics students

[@lakhpatsinghpurohit5838]

Nice and in ful depth .. I really enjoyed it.. and note down lots of point in my book in between :)

[@shehansooriyaarachchi4108]

at the resonance the impedance should be minimum because xL=xC, and the current is maximum

[@guruteja3414]

A

[@sidhusolvat113]

Current is maximum in series rlc Circuit this is parallel rlc Circuit bro🥱

[@MatheusSilva-dragon]

Whew! NOW I can understand better! Teachers should start with the more complex stuff AFTER the fundamentals of a subject. THANK YOU! (It was a lot of stuff! My head hurts, but I think it's because Im hungry!)

[@ranjithkumary-2294]

Sir but we have anti resonant circuit ,.is this parallel resonance same as anti resonant circuit

[@mounikaraghu8007]

Parallel rlc circuit is also termed as anti resonance circuit

[@manishbeniwal01]

Esi video ki talash thi✌️✌️

[@mahbubhasan7544]

Well explanation. So many helpful

[@d.kmukundan1712]

If the resonance frequency is to be developed in LC parallel circiut then the DC voltage must be applied during the first quarter of every cycle Rest of the wave form which is 3/4 th of the wave is self generating Thank you for your feed backMukundan

[@mehboob8324]

you must cover every topic..what frequency it wil discard low or high ?

[@balasubramanian599]

Very lucid and clear explanation.Thanks

[@umasrivastava4142]

Sir in my book it is mentioned that parallel LC circuit is rejector circuit not parallel LCR circuit. Is it wrongly written? Because at 3:31 you mentioned parallel LCR to be rejector not parallel LC.

[@ALLABOUTELECTRONICS]

When in the book, they say LC, it is actually the RLC circuit only. Because every inductor has some finite resistance. So, when one connects L in parallel with C, it is L in series with R (internal resistance of L) and that combination is in parallel with C. That circuit too acts as a rejector. But its resonance frequency is slightly different from the circuit which is discussed in the video. I hope it will clear your doubt.

[@umasrivastava4142]

@@ALLABOUTELECTRONICS thank you sir for your earliest response. However as you've mentioned at 6:47 that when Xl=Xc, resonant angular frequency is 1/√LC So even if we take an ideal LC, circuit, for its resonant angular frequency, there also we'll do Xl=Xc which will give 1/√LC. I couldn't understand why’d you mentioned in the previous reply that there'll be “slight” difference, please clarify?

[@ALLABOUTELECTRONICS]

@@umasrivastava4142 The case which is discussed in the video is when R, L and C are in parallel with each other. But here, I am talking about the case, where R and L are in series and the combination is in parallel with C. I hope it will clear your doubt. In this case, wo = sqrt [ 1/LC - (R^2/L^2)] I hope it will clear your doubt

[@umasrivastava4142]

@@ALLABOUTELECTRONICS yes sir it's perfectly clear now. Thank you so much sir 🙏

[@bachchusingh7793]

Awesome explanation 👍👍🙏🙏🙏🙏🙏

[@TechSouls-wn6jc]

Very detailed explanation great sir

[@yogaraj1524]

💯 percent valuable video.thank u very much sir

[@studiogervassi]

I thought in a parallel RLC circuit the equation for resonant frequency w=1/sqrt(LC) drops out and doesnt work? Is this not true then?

[@radhikakoothadi1620]

Sir u said, series RLC circuit is a acceptor circuit because this is accepting frequencies which are around resonant frequency. But this circuit is also rejecting frequencies which are far away from resonant frequency then why can't it be rejector circuit?

[@ALLABOUTELECTRONICS]

The series RLC circuit acts as a bandpass filter. So, it accepts a certain band of frequencies and rejects the remaining ones.

[@radhikakoothadi1620]

@@ALLABOUTELECTRONICS Thank you sir

[@RachitaDutta]

Why it is Wc-1/WL when take common from j... Please explain that part

[@vishwajeetkumar9599]

while calculating quality factor energy stored in capacitor is used why not energy stored in inductor , and why two of them give different equation. help plz

[@mdmaharabhossain3995]

U are a life saver😭

[@NaaJeevitham500]

what is this software you use to draw circuits and write everything?

[@starscream1457]

Will this come in JEE

[@rezwanzakaria1754]

Could u please tell me why the Vp curve is upward pointed ... even though the Ip curve is downward point ? Coz according to ohms law Vp and Ip are proportional... so shouldn’t both be of the same shape ?

[@tejaspednekar1412]

Sir how it became wc-1/wl at 4.45?

[@starscream1457]

Sir, will this come in JEE exam.. Pls answer soo sir.. I have JEE tommorow..... Its not given inmy module but i have seen this somewhere bfore so i came here....did this concept of parallel circuit ever came in JEE? Or its just electrical engg stuff

[@muskaan5852]

In the trainer kit, in parallel resonance circuit R is connected in series with L and C( L and C are in parallel). Do we call this configuration and the configuration shown in the video as parallel resonance circuit?

[@corneliariasdita715]

So... the resonant frequency are the same in parallel and series RLC circuit? Okay, I got it (the part XC=XL, then omega^2=1/LC). But I stumbled upon a circuit which R is series to L, then both R and L is parallel to C. When I saw the solution manual, the frequency at resonance is something like omega^2=(1/LC)*(1-(R^2*C/L)). Do you know where the R from (1-(R^2*C/L) come from? All the resources in the internet and your videos I read and watched said that omega^2=1/LC and XC=XL, but no other further info about R at resonance. Did I miss something? :' Btw, awesome explanation 👏

[@surajmanipal6016]

omega^2=1/LC is based on the assumption that coil doesn't have any resistance of its own in parallel RLC.

[@uukknown]

If it’s just parallel L C, does it work the same?

[@ALLABOUTELECTRONICS]

If there is no R, then the circuit is highly selective. Meaning that Q will be very high. Just put R equal to infinity in the Q-factor equation. Ideally Q would be infinite and It will act as an oscillator.

[@mr.jaydeepmakwana7457]

@@ALLABOUTELECTRONICS sir in LC circuit, R is almost zero...(?)

[@ajitprajapati751]

If resonance angular frequency is wr if w < wr so circuit act as capacitive or inductive ? for parallel resonance and serise resonance

[@ALLABOUTELECTRONICS]

In case of the parallel resonant circuit, when w < wr, the circuit is inductive. Watch the video from 6:49 onwards. In case of a series resonant circuit, when w < wr, the circuit is capacitive.

[@ajitprajapati751]

thanxx

[@tae-woongkim5017]

These series for electrical circuit analysis are very useful

[@abdalkhattak1860]

AT 18:16, it was mentioned that Q=R/XL but actually Q=XL/R=XC/R

[@seabird9983]

in seriec RLC circuit Q=XL/R, while in parallel RLC circuit Q= R/XL

[@vishalsingh-xt5ip]

Sir in case of band width we use frequency f why u use omega w??

[@ALLABOUTELECTRONICS]

w is angular frequency. w= 2*pi*f. So, w and f can be used interchangeably.

[@BlackOldDragon]

1:44 If there's a resonance, the Z = sqrt (R^2 + (XL - XC)^2) = sqrt (R^2 + 0), so won't the impedance minimum?

[@ALLABOUTELECTRONICS]

For parallel RC Circuit, the admittance (Y) is [1/R + j(wC -1/wL) ] And at resonant frequency, wL= 1/wC. i.e Y is minimum. Hence Z is maximum and due to that current, I will be minimum. I hope it will clear your doubt.

[@msn1989a]

at 12.43 how third equation changes into 4th..........! square cannot be applied on individual item by applying whole under root............? or i am missing some thing

[@rishavyadav9438]

It's correct try to watch it again

[@bharaths9479]

In series if Xc > XL then the ckt is Capacitive and in Parallel if Xc > XL then it is inductive, why?

[@001agentplatipus]

GREAT EXPLANATION SIR .

[@dhirajkumarsahu999]

Sir, what will happen if we have a current source in place of the voltage source? Sir, I feel that in such case the current through the resistor should be maximum at resonance since the capacitor and inductor would become open. Sir, is my guess correct? please help me ...

[@ALLABOUTELECTRONICS]

In the parallel RLC circuit, when the voltage is applied to the circuit, then the voltage across each element remains the same. But at the resonant frequency, the admittance becomes minimum or impedance becomes maximum. I hope it will clear your doubt.

[@dhirajkumarsahu999]

@@ALLABOUTELECTRONICS Sir, will the response will be the same if we replace the voltage source with the current source?

[@ALLABOUTELECTRONICS]

It will remain the same. The thing is in the parallel RLC circuit, we are measuring the current, as the voltage across each element is same. And if you see the response of the current through the resistor then it will remain the same.

[@dhirajkumarsahu999]

@@ALLABOUTELECTRONICS Thank you so much for your kind help sir ! ❣

[@upasnasingh209]

Thanku soo much sir Very nicely explained 👏👏😃

[@sannakkimadhuri6045]

Thank u so much sir for ur excellent explanation ..... 💐💐💐💐💐💐

[@starscream1457]

Are in college or in 12?

[@naveennataraj1578]

Is law of conservation of current not valid in parallel rlc circuit

[@mdforhadrobbani9530]

Clarification needed!!!! Can anyone please tell me @12:41 which formula did he use? sqrt (a+b)^2 OR {(a+b)(a-b)} which one? none of them is matching.

[@ALLABOUTELECTRONICS]

Its the magnitude of the A+ jB . i.e sqrt (A^2 + B^2)

[@mdforhadrobbani9530]

@@ALLABOUTELECTRONICS Thanks a lot.

[@farwaraiz6628]

Xc>XL then the circuit would be Capcitive than inductive and the current lead the voltage ??? If yes. so plz again explain the sec graph of the vidio

[@electromagno]

If XC is greater than XL before the resonance frequency then it should be capacitive in nature ...why it is inductive???

[@ALLABOUTELECTRONICS]

When Xc is greater than XL, then inductor draws more current. Hence, it's inductive in nature. ( In parallel RLC CIRCUIT). In, series RLC circuit, it's other way around. Means when Xc is greater than XL,then circuit is capacitive in nature. I hope it will clear your doubt.

[@electromagno]

@@ALLABOUTELECTRONICS thanks sir 🙏😊

[@Mr.Blue07]

Solving Q with inductor equations.. Q=[w*L*(Irms)^2]/(Irms)^2*R Cancelling Irms^2 we get Q=wL/R=XL/R Correct me if I'm wrong

[@polytechplus6677]

But by putting C= 1/√(w2L) in Q factor formula Q=wRC, we get Q= R/wL which is opposite to that derived by taking inductor. By taking inductor in place of capacitor Q= wL/R

[@shashwatdev2371]

Thanks. Also spelling of Summary is wrong at 19:05 .

[@umasrivastava4142]

Clarification needed!!!! If we want to listen to all the other frequencies as in listening to songs, why can't we use rejector circuit or band stop filter instead of band pass filter?

[@harmeharnarula7252]

1. Current value is less at the resonating frequency of parallel LCR 2. Q factor will be affected

[@divyanshu1210]

Great help .... thank you so much sir

[@sudeepsaha452]

Nicely explained. Cheers :)

[@sateesharnipalli6519]

I think at resonance condition current is maximum, so the impedence is minimum.. Crt me if i am wrong..

[@Youtuber-xt7of]

It's for series RLC circuit, for parallel RLC , impedance is max.

[@jjayasankar9957]

Can you explain how the impedance in parallel RLC circuit is maximum

[@nevillelongbottom423]

At 12:26 Xc=1/wc and XL=wl why have you substituted in reverse? As Xc>XL then It should be [ 1/wc - wL ]

[@ayush9462]

Sab reverse hojayega

[@ashutoshgupta6060]

if RLC circuit are connected in parallel with a dc voltage source then no of node ?

[@ALLABOUTELECTRONICS]

Apart from the reference node (ground), it has only one node.

[@poondlasaidinesh1388]

At resonant IMPEDANCE NOT EQUALS TO R, JUST XL=XC SMALL MISTAKE SIR , FOR YOUR KIND INFOR

[@swarnabhasahu7938]

At 15:49 How you get the value of omega2?

[@ALLABOUTELECTRONICS]

At 14:36, by solving the second equation, you can find w2.

[@abhinani5102]

Explain the term "j"?

[@-PAUL-ub3bz]

What is quality factor only in terms of L and R sir?

[@ALLABOUTELECTRONICS]

For parallel resonant circuit, Q = R / ωL. I have already mentioned in the description of the video.

[@AmanRaj-MNNIT]

Is this is in jee mains syllbs

[@bobcocampo]

What is the application? Please give example.

[@RishikavsAnnie]

But at w=0, we get Xc=infinity and XL=infinity at w=infinity, so doesn't that make the impedance maximum at these points ?

[@ALLABOUTELECTRONICS]

Yes, That's true. At these points impedance will be maximum and the current through the circuit will be minimum. But when XL = Xc, impedance of the circuit will be minimum and current will be maximum.

[@RishikavsAnnie]

@@ALLABOUTELECTRONICS But then the graph at 7:17 says that current will be minimum and impedance maximum at Wr . Also, when the circuit is capacitative (Xc>XL), shouldn't I lead V and lag behind V in an inductive (XL>Xc) circuit ?

[@ALLABOUTELECTRONICS]

Oh, I beg your pardon. What I said is true for series RLC circuit. For parallel RLC circuit, the impedance will maximum and current will be minimum at resonant frequency. Let me explain in this way, it is parallel RLC circuit. So, at the given frequency from which circuit component (inductor or capacitor) maximum current is flowing will decide whether a circuit is inductive or capacitive. At w=0, XL = 0 and XC = infinite. (i.e XC>XL). But as XL =0, entire current will flow through inductor. Or it can be said that circuit is inductive. Likewise at w= infinity, XC= 0 and XL= infinite. So, at a very high-frequency majority of current will flow through capacitor and circuit will be capacitive. So, if you move away from the resonant frequency then the current will increase. But at resonant frequency current will minimum or it can be said that impedance will be maximum. I hope now it will clear your doubt.

[@RishikavsAnnie]

@@ALLABOUTELECTRONICS Yes, it did . Thank you so much ! I love your channel !

[@twilight7713]

XL=jwL Sir, why you write j with wL? Kindly tell me what is j ?

[@ALLABOUTELECTRONICS]

Basically, it represents the phase information. It represents the leading and lagging of current and voltage. For more info, please check the video on Phasor and Phasor diagram. Here is the link: kzbin.info/www/bejne/sJ3QqKCsns-hZ7s

[@sushamakumari5043]

Very helpful!..😊😊😊😊😊

[@priyanathtrivedi8390]

Kindly find this as constructive criticism...... While dealing with quality factor and bandwidth I found that there was not proper explanation.... For instance why if more quality factor than the graph narrows down..... Why we call it rejector circuit...

[@sm-ph8uf]

current maginify ka reason koi explain kar do plz...

[@bulla7910]

why will the impedance be maximum?

[@shainimonce3549]

Because the R is constant At low frequency the capacitor is open and the inductor is short The inductor will have the lowest reactance this causes a low impedance At high frequency capacitor will act short circuit and that will provide a lower reactance this also cause low impedance At resonance both will be equal So the impedance will be the highest

[@balajigugulothu6576]

what about Power Factor at Resonance RLC parallel circuit ?

[@ALLABOUTELECTRONICS]

At resonance, the power factor will be Unity because at resonance, Xc= -XL.

[@sksaini7461]

what are the variations in the parallel LCR circuit?

[@starscream1457]

Ye jee me aayega bhai?

[@sksaini7461]

@@starscream1457 nhi aayega bhai, jha tk mujhe pta h

[@adityagoel237]

w1 and w2 are called half-power frequencies, but for parallel circuits, you calculated them by doubling the power. why?

[@ALLABOUTELECTRONICS]

Because the curve is for the current. If you see the impedance, curve at the resonance, the impedance is maximum. But since the current is V/Z, so curve gets inverted.

[@adityagoel237]

@@ALLABOUTELECTRONICS i am asking that why are w1 and w2 called 'half' power frequencies when they are obtained by 'doubling' the power?

[@ayeflippum]

I think it better to use a current source for the parallel circuit.

[@moonpiespotlight4759]

ELI the ICE man.. Voltage leads current in an inductive circuit. Current leads the voltage in a capacitive circuit. Purely = 90 degrees. SARL PARC.. where ELI lives. Series above resonance = inductive. Parallel above resonance = capacitive.

[@tayenjamjeneetaa494]

why is it that when XL=0 the inductuctive reactance is dominant?

[@ALLABOUTELECTRONICS]

when XL=0, then inductor will act as a short circuit. So, entire current will flow through So, at that time it doesn't matter what is R and XC in the circuit because the entire current is flowing through the inductor. So, in general, at lower frequencies, inductive reactance will be dominant as the majority of the current is flowing through the inductor. I hope it will clear your doubt.

[@tayenjamjeneetaa494]

oh i get it. thanks

[@tayenjamjeneetaa494]

and i could see that you have used this formula when calculating I1 for bandwidth. i.e a+jb = (a^2+b^2)^(1/2) could you please elaborate this?i am stuck here.

[@dksingh5902]

tayenjam jeneetaa hello friends

[@sairamnamburu7254]

@@tayenjamjeneetaa494 that is root of A Square and Bsquare

[@eeejsbd178]

vlo laglo vai

[@jishanshaikh8961]

Effective explanation!!!!!

[@viniciusmontezi4838]

very nice

[@shibaneethakur5035]

Can anyone help me with a parallel rlc circuit numerical...???

[@anujyotibhattacharjee5831]

7.42 correction. Frequency below the resonant frequency circuit is capacitive. Above resonant frequency circuit behaves like inductive.

[@ALLABOUTELECTRONICS]

Below resonant frequency, since Xc is greater than XL, so more current flows through inductor. Thats why the circuit is inductive. ( Even though Xc > XL). The reverse happens above resonance. Because above resonance, the XL > Xc. So, for the same voltage, more current will flow through the capacitor ( because of lower reactance). And therefore, the circuit is capacitive. In case of series resonance, it's totally opposite.

[@sonatonkumarsaha4311]

I was stuck at the same problem, but the fact is, XL and Xc are in parallel, take the equivalent of reactance or impedance of these two branches, then compare at different frequencies.

[@sadeepshyamalgamage453]

Good content.thank u

[@fazlerabbi2666]

in parallel resonance when Xl=Xc, there will not always be resonance.(please check V.K Mehta book)

[@akashmali2395]

6:54 it should come XL > XC therefore lagging portion . And the way you have written XC > XL it comes in series resonance circuit.

[@ALLABOUTELECTRONICS]

Let me explain it to you intuitively. When Xc > XL, more current will flow through the inductor. So, at low frequencies, in parallel resonance, the circuit is inductive in nature. At high frequencies, XL > Xc. Therefore more current will flow through the capacitor and hence the circuit is capacitive in nature. For series resonance, it is other way around. Because there, the current through all elements is the same. We are measuring the voltage across each element. Therefore at low frequencies when Xc> XL, the circuit is capacitive in nature, and when XL > Xc, it is inductive in nature. I hope it will help you.

[@akashmali2395]

ALL ABOUT ELECTRONICS now for parallel as you said if more current flowing through the inductor it is inductive and same on another side it is capacitive it is because in parallel current is same . Then please elaborate me for series where voltage is same then why we say in case of series that at lower frequency XC>XL i.e capacitive and p.f is leading and for hight frequency XL>XC i.e inductive and p.f is lagging (Now in series here leading means more current should flow from capacitor so according to that XL>XC at lower frequency and for higher frequency lagging means more current should have flown through inductive so XC>XL why it is not like that in series.) Please help me that. Thank you.

[@ALLABOUTELECTRONICS]

In parallel voltage across each element is same while in series current through each element is same.

[@a_57_kaushalkumar12]

If W< Wr then circuit is capacitive means current should lead voltage while W>Wr circuit is inductive and current should lag voltage

[@mohdrafiq5165]

nice work

[@hemalathabhattu2609]

Thank u so much sir

[@BentHestad]

Super! Thanks!

[@ondadevapor]

omg, thanks a lot!

[@swarnabhasahu7938]

At 5:00 the step may be wrong. How you can take j common? Where in case of wc it is in numerator and in case of wl it is in denominator.

[@ALLABOUTELECTRONICS]

1/j = -j, If you closely observe, there is a negative sign in the next step.

[@swarnabhasahu7938]

@@ALLABOUTELECTRONICS How 1/j becomes -j? Help me to understand this.

[@ALLABOUTELECTRONICS]

You would have studied in the high school that, j^2= -1. So, 1= -j^2. Hence, 1/j = -j

[@swarnabhasahu7938]

@@ALLABOUTELECTRONICS Thanks a lot. 🙏🙏

[@lidiabelhadj5180]

thanks sir !

[@udaytewary3809]

At 7:05 As Xc is greater than XL then circuit should behave like capacitive then how it is inductive please clarify this #allaboutelectronics

[@ALLABOUTELECTRONICS]

Since it is a parallel resonant circuit, when Xc > XL, then more current will flow through the inductor. In parallel, the voltage will remain the same. But more current is flowing through the inductor. That's why it is inductive. I hope it will clear your doubt.

[@udaytewary3809]

@@ALLABOUTELECTRONICS mean in which component the more current will flow will decide the behaviour of the circuit whether it will be inductive or capacitive and thankyou for clearing my doubt😇😇😇🥰

[@ALLABOUTELECTRONICS]

Yes, atleast in parallel circuit. In series RLC circuit, its other way around. Because in series, the current is same through each component. So when XC > XL, the circuit will be more capacitive, since there is more voltage drop across capacitor. I hope it will clear your doubt.

[@vlogncm3957]

5:27, shouldn't be that 1/wL = wC?

[@ALLABOUTELECTRONICS]

Mathematically, both are the same. isn't it ??

[@johnweakland6887]

talking to fast I am having a hard time understanding and keeping up ...slow down a bit

[@bitsurfer0101]

Even at 0.75 I have a hard time keeping up with him.

[@driptosaha5708]

🤣but I'm using...× 1.5...

[@twilight7713]

Can you provide pdf of this?

[@mdinshadkhan9608]

Please describe for mix circuit

[@JeremyGavriel]

I don't understand how you got from the second step, into the third step where you have the square root(see 13:02)...I think that's mathematically incorrect..

[@ALLABOUTELECTRONICS]

Its the amplitude or modulus of the complex number. Let's say we have one complex number A+ jB. Then its amplitude or modulus will be sqrt (A^2 +B^2) I hope it's clear to you now.

[@JeremyGavriel]

Ah yes, I understand now. I have another question though. Why is the energy stored per cycle only considers one factor, either the inductor or the capacitor? Why not the total of them both?

[@d.kmukundan1712]

Suppose we have L and C in parallel with a DC supply what happens?Mukundan

[@ALLABOUTELECTRONICS]

During the transient, the inductor will oppose the instantaneous change in current and it will act as an open circuit, while the capacitor will act as a short circuit. (Capacitor will charge during the transient time) After the transient, entire current in the circuit will flow through the inductor as inductor will act as a short circuit in the steady state condition.

[@shatakshisinha2794]

Quite good

[@hoytvolker3]

Subscribed !

[@subratkumardash8839]

how current lags voltage when Xc>Xl?

[@ALLABOUTELECTRONICS]

This is parallel RLC circuit. So, when Xc>XL, more current flow through the inductor than the capacitor. So, nature of the circuit will be inductive. For inductive circuit voltage leads the current or we can say that current lags the voltage. I hope it will clear your doubt.

[@subratkumardash8839]

ok sir..thankx a lot..bt in series resonance current leads when Xc>Xl..is this correct??

[@ALLABOUTELECTRONICS]

Yes, That is correct. Because in series RLC circuit, when Xc>XL, there will be more voltage drop across capacitor than across the inductor, And circuit will be capacitive in nature. So, current leads the voltage.

[@atulsain6170]

Likes for both of you.

[@bandaruramana2119]

Sir please make a video of animation not mathematically please

[@sowmyasree3981]

excellent...keep doing

[@waseemqadir9706]

i have a problem sir...

[@letsgetiton99]

12:30 I know this is just maths but can someone clear me out this thing? It just knocks my dumb brain out when I saw this suddenly. How the imaginary j disappear in a sudden?

[@suryaganeshrajusarikonda9218]

a+jb = √(a^2+b^2) complex conversion