Energy and Power Signal (DT) - Examples, Calculations, Equation, Formulae, Tricks

[@ShrenikJain]

Shrenik Jain - Study Simplified (App): play.google.com/store/apps/details?id=co.kevin.nxpgd

[@shivanshyadu4830]

bhai aap ka knowledege toh ek dum kamal ka hai

[@tejasbhardwaj8909]

god, bless this man.

[@ShrenikJain]

Ty 😃

[@RajatTulshiramKakade23BEE000]

Really , these are the best videos for signals and systems

[@nishasomdeve879]

One doubt... Actually u[n] is a power signal because it is a bounded signal with finite amplitude.. Not because it is periodic.. In any circumstances it is not periodic.

[@dhawalprajapati3705]

And the thing is that all periodic signals are energy signal except u(n)

[@oviya.n1317]

Yes , aperiodic signals are energy signals and vice versa. But .....All periodic signals are power signals but the converse is not true .

[@sirajjalil575]

the best way ever on youtube

[@shraddha429]

Amazing sir... Tricks are very helpful,.after watching your video and the way of explanation to solve problems I just fan of you.. Thank.

[@praveenpallagani1277]

Super explanation and good tricks

[@Ben-hu9wh]

World best teacher 🔥🔥

[@vandanadevi8873]

Nice vedios u have made.....very helpful for everyone.....May God bless you ....but ..for question x[n]=a^n u(n)......there are three cases....... |a|={1,-1} function is power signal, |a|>1 neither energy not power signal and |a|

[@sarathsaipeteti6029]

Thank you so much for this great explanation!

[@aashishkarn]

Thank YOU FOR THE CLARITY SIR.

[@revanthk9750]

Bhaiya your tricks are super bhaiya😉😉

[@YosefTesfay]

Excellent! Good job. Thank you.

[@nabi800]

Thank you sir, Adonai will bless you 🤗❤

[@geevaable]

Hi Sir, in discrete energy & power signals, the sum of N samples of cosine term is tends to zero. Can I get the explanation in detail?

[@sathwika.kunamalla146]

Hi..Can u explain...classification of elements in electronics topic

[@gayatrikumari833]

thanku so much sir for video which is very helping to guide line to the student who unable to pay lots of mony for preparing gate exam..... thanku you so much.

[@ShrenikJain]

Welcome 😃

[@raghavendrayadahalli8683]

You are awesome bro 😚

[@Savour_Craft_Explore]

Really sir...tricks r awesome

[@ShrenikJain]

+Susantini Behera Ty 😃

[@pwndownddg]

Thank you! very well explained!

[@atharalimaan8509]

that is a brilliant video

[@veedapusiddhartha4895]

Thank you very much sir🙏🙏🙏

[@nihalkumbhare2468]

Nice video sir.Sir,please make video on how to draw waveform of the functions in signal& systems.

[@rajadas9716]

thanks dude ..it really helps me

[@quicknaturalbeauty]

Be the best 👍👍

[@mannambhavani4266]

Thanks for such a nice content.

[@priyapri2456]

Pls give tricks also for energy signal

[@shubhamkurup771]

Excellent video bro

[@ShrenikJain]

Ty 😄 Share videos with your friends too 🙂😃

[@LearnwithTejeshwar]

Thank you sir 🙏💓

[@singingkalyan4104]

sir how come u[n] be a periodic signal? it does not exist from -infinity to +infinity similarly u(t) is also non periodic as it does not exist from -infinity to +infinity another reason for the u(t) not becoming zero is we cant say its time period periodic signals are those which exist from -infinty to +infinty and their time period is defined throughout

[@shahrinislam8511]

Thanks a lot ❤️

[@neetikaverma8821]

Really helpful. 🙌

[@gouravsharma664]

Is there not any trick for Non periodic?

[@sangeethasasikumar1860]

Thank you so much

[@priyanka_c6955]

U'll walk straight to heaven😭

[@gokulkrishnan7364]

Nice explanation thanks bro

[@ShrenikJain]

Welcome

[@mirovskii]

Firstly, thank you so much for these helpful explanations. But there is one thing that I could not understand. How u[n] can be periodic signal? It can only be periodic from zero to infinity or minus infinity to minus one. But not from minus infinity to infinity, right?

[@34_roshansingh_it80]

right bro

[@Rekha31200]

Best one👍👍

[@ajitpal702]

Sir please odd and even signal video upload

[@aumeerwafiik875]

hello sir, what is the power of signal 12:35? x[n] = n for n=0 to n=4

[@aashutanwar6624]

Thanks bro

[@romitrajput1950]

Summation -N to N cos2(theta) /2 is coming as 1..sir can u please tell that how it is coming 0.I have only this doubt and thankyou for making this and continuous time video this help a lot to solve question from Alan oppenhieum book.

[@kidney7633]

same here

[@abdheshthakur9474]

Excellent

[@ShrenikJain]

+ABDHESH THAKUR Thanks man 😃 Share this video as well so that we can help many students 😊

[@mixchapter]

Thanks a lot but please can you help me with this un(n) and u(n)-u(n-6) and er(n)-r(u-4) are they power or energy signal or neither of the them

[@parameshvk_4208]

Test Whether the signal x(n) = (½ ) n u(n) energy or power signal

[@madhusudanbhanuse3777]

Thanku

[@anamika6956]

Where to find the notes of your videos ! Please tell , tomorrow is my exam

[@arfatshaikh4669]

U explained good but don't know integration 😔 finding little bit difficult

[@shrutichavanaik5782]

Thank u sir

[@deepakkumarjha1442]

Amazing sir

[@ShrenikJain]

Ty 😊 Share with your friends too :)

[@shaiksajida296]

Sir, Are DT complex exponentials always periodic?? Are CT complex exponentials always periodic??

[@rajatbaldha9375]

at time 7:20, The generalized formula seems to be wrong. instead of a^2 its just a according to your explanation

[@mahalakshmi8395]

But his explanation abt the same concept only with A or A^2. Both r periodic and need to find out the power in both the cases.

[@HardikPatel-wj8wo]

Sir how that cos2theeta/2 become 0..Sir dont give answers directly please atleast solve .Coments below are asking same questions.. Very disappointed.

[@wikiiiiiii3850]

draw its graph , you will notice negative values and positive values cancelling each other as its range is from -N to +N.

[@jacktretton7815]

@@wikiiiiiii3850 but the cosine function is squared ... therefore the function is all positive .. I'm quite confused too

[@nicholas_eras]

@@jacktretton7815 change for (1+cos2x)/2

[@ShrenikJain]

get BEST NOTES for FREE !! fill this form - docs.google.com/forms/d/e/1FAIpQLSeurlYOI6yE0e8eeUyfw8z5Pli0cdfKE26Jn_8Ma2u4qSufOg/viewform

[@MsRock1981]

really the best..... and how that cos 2 theeta/ 2 becomes zero

[@ShrenikJain]

Arul Jothi Put in the values and sum all terms and check...

[@deepanshurawat5882]

Really good 👌

[@ShrenikJain]

Deepanshu Rawat Thanks for appreciating 😃 Hope you share with your friends as well so that we can help many students 😊

[@sangemkaveri8442]

for cos (pi/2 )n , we are getting 5/9 as answer.....

[@jrob37]

what happend if in an energy signal you have a number >1? You'll obtain a negative energy. The formula at 6:37 is pretty bad!

[@talha2531]

What is trick for energy signals

[@nomad_diaries86]

at 8:51 how cos2theta/2 is zero

[@ShrenikJain]

+varthakavi sai Put values and check

[@junaid7404]

great work cham.

[@ShrenikJain]

Ty 😄😊 Share with your friends as well 😊

[@devanaramya9480]

exponential (2n) can you please explain it

[@devanaramya9480]

In this exponential term was not zero right

[@devanaramya9480]

In that case how can you solve this problem

[@saimahalakshmijanjanam2380]

Is unit impulse is energy signal....but i think it is neither energy nor power signal...plzzz clear my doubt

[@binodbinod4083]

energy and power is dimensionless in case of discrete time signal.

[@masratdr9967]

X(n) =sin(3.14/3 ) do this question sir

[@akhilareddykuncham1215]

How summation of cos2tita/2 become zero please tell me sir

[@mahmoudm451]

It's Σ from -N to N of cos(π * n)/2 since θ in the question is (π/2)*n and thus, cos2θ is cos(π * n). Now since N can only be a discrete value, if you consider N as 1, it will be cos(π)/2 which is -1/2. If N is 2 it will be cos(2π)/2 which is 1/2. Similarly, if you consider negative values of N like -1, it will become cos(-π)/2 which is -1/2. If N is -2 it will become cos(-2π)/2 which is 1/2. Now since it's a summation, and as you can see it's alternating between -1/2 and 1/2 always, the values will cancel out each other leaving you with 0.

[@James-bv2kc]

@@mahmoudm451 what about cos 0

[@nicholas_eras]

@@James-bv2kc 1/2... The cos is 1, and there is a 2 denominator

[@varuntej9349]

How to solve this type of questions Sin(3πn)cos(4πn) Find energy and power signal

[@BrokenHEART-mi8zt]

wtf bro , apply basic trignometric formulaes

[@romitrajput1950]

Please sir do answer this doubt pls sir pls pls pls🙏

[@priyasingh-lv2ii]

Sir.. U hav missed out explaining small points...please focus on dat

[@sajjadkhan-gc2gp]

not clear concepts trying to skip thing that needs to explain

[@arthurgichuhi]

My lecturer is trash compared to this video. Thanks a million.

[@ShrenikJain]

Welcome Keep learning keep sharing 😊

[@abdullatif9108]

link to the previous video.. i cant find your CT

[@raghavbansal8368]

kzbin.info/www/bejne/mIvKgneVbMlojK8

[@sanketsonawane7925]

can u plzz tell how to solve this one , X(n) = u(n)-u(n-6) ,i am seriously confused ,help me out plzz

[@pritysinha4840]

I also

[@PrasuryaPratimParashar]

[@saimahalakshmijanjanam2380]

a power n multiplied u(n) is non periodic....but at the end u said that it was periodic and u dertermined power for that signal i.e 5u(n)=25/2 how it is possible

[@ShrenikJain]

Sai Mahalakshmi Janjanam Mistake! Periodic signals are power signal but Not necessary that Power signals are always periodic Like exception u(t)

[@saimahalakshmijanjanam2380]

Shrenik Jain that was not my doubt at 7:12 the power for function "a power n multiplied with u(n)" is 1/(1-a2) cant we apply that for 5u(n) then power becomes 1/(1-5*5)=1/-24

[@ShrenikJain]

Sai Mahalakshmi Janjanam We cannot apply your logic

[@oshanmayadunne2375]

Indian rap god

[@ananthipremkumar5821]

how (cos 2 theta/2)=0

[@ShrenikJain]

Ananthi prem kumar Put the limits and then do summation of the values ... And will be 0

[@chandrachhetri1624]

Pls speak slowly and nicely. U are bring question butvneed to improve in speaking

[@harshranjankumar964]

LOL me watching at 1.5x speed

[@106mehaknazir2]

👍🏻

[@mayasharma6413]

Please explain slow...its very fast

[@heinminzaw6932]

Excellent video but speaking is a little fast

[@ShrenikJain]

Ty 😇

[@afreenmahmood2292]

1/1-a not a2

[@romitrajput1950]

We r taking the square of mod na in example the question was a^n and when u do mod square of that function it becomes a^2n that's what sir did directly!

[@romitrajput1950]

I hope u got it now :-)

[@Dambouniquecommunitiy]

Sir plzz handwriting apki bahot garab hai plzz use thik kijiye apke video me ky likha o hi samaj nahi ata

[@nitukumari2354]

thank you so much