Phasor and The Phasor Diagram in AC Circuits Explained

In this video, phasor, and Phasor Diagram for AC circuits have been explained. And at the end, voltage and current relationship between the basic circuit elements like resistor, inductor, and capacitor has been explained using phasor diagram.
What is Phasor?
Phasor is one of the ways by which we can represent AC sinusoidal signals and we can perform arithmetic operations onto these sinusoidal signals.
Phasor is rotating the vector, which rotates around its origin at angular speed w rad/sec in anti-clockwise direction. The length of this vector represents the maximum amplitude of the sinusoidal signal and the angular velocity represents the angular frequency of the sinusoidal signal.
When phasors are represented on phasor diagram they are represented by only amplitude and phase of sinusoidal signals.
(Frequency is not represented because phasor diagram is used for signals which have same frequency but different phase and amplitude)
What is phasor diagram?
As its name suggests, phasor diagram is used to represent the phase difference between the sinusoidal signals which have the same frequency but different phase and amplitude.
Using this phasor diagram, it is easy to analyze different sinusoidal signal signals which have the same frequency.
Mathematically these phasors can be represented in three different forms.
1) Polar Form
2) Rectangular Form
3) Exponential Form
In this video, it has been shown that how to represent phasor in this three forms.
And at the end, voltage and current relationship between the basic circuit elements like resistor, inductor, and capacitor has been explained using phasor diagram.
1) Resistor: For resistor, Voltage and current will be in phase
2) Inductor: For inductor, voltage will lead the current by 90 degree
3) Capacitor: For capacitor, current will lead the voltage by 90 degree
Timestamps for the different topics in the video is given below:
0:20 What is Phasor and Phasor Diagram
5:24 Mathematical representation of Phasor in different ways
6:40 Voltage and Current Relationship in Resistor using phasor diagram
7:53 Voltage and Current Relationship in Inductor using phasor diagram
10:03 Voltage and Current Relationship in capacitor using phasor diagram
11:57 Summary and simple trick to remember V-I relationship for basic circuit elements.
This video will be helpful to all students in understanding the concept of phasor and phasor diagram in the AC circuits.
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[@krittikaraj1965]

I also wanted to share one shortcut. IPL - Inductor, Potential Leads CCL- Capacitor, Current Leads 😁

[@abhinav788]

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CIVIl short trick was just awwesm

[@CorporateCat]

You have done a fantastic job with this series on AC circuit analysis. Speech is so succinct and thought out and your lecture notes are spot on. Made my life so much easier. May someone facilitate you as effectively as you have facilitated so many students like myself.

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Ok put down the oxford dictionary lol

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[@kirbymia6209]

Always know I can rely on this channel to explain challenging concepts better than my lecturers who did their PhD in electrical engineering.

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Everyone can learn but not everyone can teach

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[@abhijitshirwal]

190K views, 2.3K likes???????? This video deserves more

[@musicmanager7]

Thank you so much I tried looking high and low for someone to explain where the theta came from in a A + jB situation and NOW i have an answer.

[@biplabkar1391]

So many years I have been reading but never listen a trick like CIVIL anywhere.It's really awesome for remembering.Great work guys...keep it up.I always searched your video first in youtube for any topic related to electrical.

[@A--HarshitPandey]

grateful to you formaking me understand what i couldn't for past 1week:)

[@karima1287]

Very nice video and because of the CIVIL word I will always remember now

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Legendary explaination. Perfection...........

[@melleansasay7111]

Thank you sir! Your explanation helps me a lot

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This video is nothing but a good explanation.

[@prathameshchavan8303]

Great I got concept

[@126_dhrupadpandya9]

Liked before watching the video!

[@basantmounir]

Excellent explanation.

[@kylegordon9002]

very helpful, thank you!

[@srivatsaa.r.9936]

sir yr video on phaser and phaser diagrams in ac circuit:_ I have no words to express my gratitude for yr above brilliant VEDIO. During my COLLEGE/technical institution days i had tried my BEST to understand these things but in vain. None of the books nor my teachers lecture HELPED ME TO grasp their significance. Even till today i REMEMBERED all the equations and differenciations but blindly. But now today After yr brilliant tutorial i could appreciate their significance. I understood every small bit u explained there. the video Is a classic EXAMPLE OF how a number of information can be in one small video that too completely clearing all doubts without intimidation. thank u s.vatsa, Bangalore.

[@shankarshejwal6737]

Sir really im also not understanding something about ac fundamentals...😢😫😭

[@makkam999]

great vid! thank you

[@ARUNKUMAR-kv5dn]

very help full , thanks.

[@ShahadatHossain-oz2gu]

very helpful..thank you sir.

[@asadullahsoomro157]

Thanks Sir Great way .....I have got a lot

[@chandraprabha6107]

Very good trick sir..thank u

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Hi I like your lecture

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Really thanks for this wonderful video

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Very helpful video.

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thank Youu! You have done great job💥

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Thanks a lot.....greatly explained❤

[@mahavirsingh5790]

Awesome lecture

[@rudymelo880]

Excellent work

[@LevelUpEducationPunitUpmanyu]

Want to ask why voltage line always greater than current line...In phasor diagram if it is in same phase than both line are same..But when it leg or lead v is greater tha current????

[@mibrahim4245]

excellent man .. bravo

[@mayureshdhanawade7394]

Sir suppose you are given to find average power and are given voltage source which has phasor 5

[@ashwinsarvesh4833]

amazing teaching

[@subhass102]

actually in many cases phasors represented by rms value. got it. this is due to voltmeter reading.

[@soumyaabilash406]

CIVIL is super....thank u very much

[@HKsOriginal]

really helpful video

[@rishabhsharma5254]

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[@poojashah6183]

Good explanation 👌👌

[@Laalith999]

Thank you so much it helped me

[@thushanchamika4715]

Well explained ❤️

[@physicsforallanniefreeda8909]

Good explanation 👍

[@Shivani-ex1iv]

Thanks for video

[@sarbjitsekhon1868]

Nice explanation

[@shivasmart967]

tq sir

[@amarshjain6061]

thanks for the CIVIL idea

[@sauravdeka170]

when we draw the phasors in the plane, which value should be taken ? maximum or RMS ? is there any hard and fast rule that we always need to take only the RMS value of an AC quantity for phasor diagrams ?

[@ALLABOUTELECTRONICS]

Well, there is not hard and fast rule. Some textbook takes RMS value while some textbook takes the maximum value. Some textbooks take RMS value because most of the AC signals are represented in RMS value. (e.g 230 V, 50 Hz AC Signal). But, there is no hard and fast rule.

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[@akashbhardwaj4592]

Gjb explained

[@harsh9558]

Sir thx a lot!

[@kjmtanta6769]

Good lecture but problem is that you talk too fast. Slow down the speech a little bit. Otherwise, thanks for the lecture

[@amritkumarbehera9631]

Thank you

[@nishujoshi2583]

sir for pure inductive circuit you have write ImSIN(wt+ O+90`)=e^(j*pie/2)I how???????????/

[@papac7940]

4:46 correct me if i'm wrong. I know the diagram is not drawn to scale, however the amplitutes of v1 and v2 look the same. Is it accordance to the x axis in that instance?

[@ALLABOUTELECTRONICS]

Yes. They are not to the scale.

[@ankittank573]

In Phasor Diagram,,,,, what physical meaning is given by the length and the angle of the phasor ????? i want phasor diagrams for a sine amplitude modulation for different time steps with carrier, sidebands and the sum phasor...???? and its all with sine phase modulation...............????? help me.........

[@zizo-ve8ib]

I just have one question about representing the phasor as a complex number, does that mean the phasor can have complex values along the way, or is it something else ?

[@anusuyabhattacharyya9580]

Yes ... pure complex values are possible ... L and C only have complex value.

[@HpDopeman]

Vary Naice!!!

[@akashbhardwaj4592]

Point to point

[@newlearner8701]

thank you sir

[@zoiloblanco3413]

I use ELI the ICE man trick, i thought Capacitance is always in negative phase, which is the phase angle should be in negative.

[@deepthidasari4043]

thank you

[@hibro2270]

Thanks bro ❤️❤️❤️

[@GammaDigamma]

3:35 shouldn't the phase constants be in radians (30 radians)

[@manikantatikkireddy9613]

I want how to draw the phasor diagram Star connection Delta connection Pls Tell me😕

[@mnada72]

What if the signals have different frequencies , is it possible to use the phasors to represent them ?

[@ALLABOUTELECTRONICS]

No, only the signals of the same frequency can be represented using the phasors

[@ayanbhattacharya5351]

Thank U Sir

[@shivsrikakolum2100]

For Inductoryou took VofL and For Capacitor you took I of c Why?

[@mahivinu9982]

super sir

[@sammezdoodles]

if the output of voltage of RL circuit is taken to be the voltage across the inductor, the circuit is said to be....

[@muratcanyazici6021]

good job

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thanks boy

[@militaryguy7817]

Life saver

[@rudrapratapbansidhar4416]

nice.

[@rahulnegi600]

would be glad to know the name of song in the beginning of the video. :)

[@ALLABOUTELECTRONICS]

If I am correct it's bensong buddy. I have provided a link in the description.

[@weare8433]

虽然老师讲的内容都一样，但为什么我就是听不懂我们老师讲的课呢？

[@aryasmitadhir1889]

How did the phasor diagrams in case of inductor and capacitor are same? Could u just explain me!

[@sachinmohan5384]

not same . in capacitor current is leading,and in inductor voltage is leading.both lead by 90 degree

[@rewernan]

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[@gopibaddu3037]

Tq broo

[@user-up6ud5sx2e]

the sign wave must be sine soidal?

[@Kannarakki8689]

good

[@letsplay9667]

I don't understand why we find out phasor relationship for capacitor & inductor & resistor...

[@saultrujillo9501]

nice intro

[@nasrinriya4242]

I Don't understand that point how the term come e to the power (pie/2)....

[@ALLABOUTELECTRONICS]

Im *sin (wt + Φ + 90) can be written as Im * e ^j ( Φ + 90) or Im*e^( Φ) . e^(pi/2). I hope it will clear your doubt.

[@shazboi]

9:10 how did u get e power(j pi/2).Im.phi ?... in which form is it ? polar or exponential? 9:13 how is e power (j pi/2) equal to j? plz explain

[@ALLABOUTELECTRONICS]

It is in polar form. Im< phi. and 90 degree is phase shift is introduced due to differentiation. e^(j pi/2) can be written as cos(pi/2)+ j sin (pi/2). cos(pi/2) = 0 and sin (pi/2) =1 That's why e^(jpi/2) = j.

[@shazboi]

Oh k I get it !! Thanks a lot!!

[@nisha-iq5rr]

@@ALLABOUTELECTRONICS how can we write 90° phase shift as e^(jπ/2)...?? Or what is rule behind it?...plz ans I wasted so much time searching about it.... Also can we write every phase shift theta in terms of e^(j theta)

[@meghashreearunashmi3650]

What is the x axis and y axis?

[@rajeswarisaravanan778]

Y anti clockwise y not clock

[@MusicKalana]

Digiri🙊😍

[@Hanieharkyu]

waveform and relevant voltage current phasor diagram

[@kaseycee]

When does the english version come out?

[@aemybrekhna5435]

Rapstak ... try to gain something..... not to focous on his english..🙃

[@justinmera2118]

How come that Vl=wLe^j (pie/2)Im

[@ALLABOUTELECTRONICS]

I hope, the differentiation of VL= Ldi/dt is clear to you. Before that Im sin(wt + phi) has been assumed as Im

[@MungedToastFace]

The signal vector with a magnitude of 10 should be twice as long as the signal vector with a magnitude of 5 at 3:09 you drew them the same length.

[@NinoNiemanThe1st]

Bit hard to understand the English, and some of the writing is illegible (eg. the letter 'V', it looks sometimes like a half-written omega).

[@nakulbageja2232]

How is e^j*90 = j?

[@ALLABOUTELECTRONICS]

Using Euler's Formula. According to the Euler's Formula, e^j(φ)= cos(φ)+ j sin(φ). Just put φ= 90. And you will get it.

[@kmws1991]

thanks.

[@emmanuelcabrela5143]

ALL ABOUT ELECTRONICS just wondering is that really in degrees? Or in Radians?

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@@emmanuelcabrela5143 Degrees, everything we're considering here is in degrees right? So yeah

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This is nothing but a comment 🤗

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