Shortcut for Region of Convergence (ROC)

[@joshmillare3546]

ROC1: σ-3
Common ROC:-3

[@AdityaKumar-hz9um]

right answer bro

[@bharathimeena2207]

Sir your way of teaching is easy to understand the concept

[@joeyzhou8273]

-3

[@phanindrareddy4885]

Joey Zhou ur answer wrong

[@joeyzhou8273]

how is it wrong?

[@phanindrareddy4885]

Joey Zhou for both sided signals
Lti is stable

[@collegetv7986]

Only if it includes jw axis and in this case it is clearly not including

[@ankushsaini2068]

Joey Zhou answer is right

[@sharansaign8093]

between -2 to -3, as the case of 1st sigma, we have left sided signal so the value of sigma turns to less than -2,and in the case of 2nd sigma value, we have right sided signal so the value of sigma turns to be greater than -3 and there will be intersection between these regions ,so it will be the convergence region of the entire equation

[@godishelping]

wrong answer

[@Muxik4k]

@@godishelping why?

[@amarjeetKumar-ng6dc]

Use concept of math it lies between 2 and 3 and not cross imaginary axis so not stable.

[@DayaTapuKPapaGada]

@@Muxik4k it's not left sided, there is -ve sign

[@aryanvardhan809]

@@DayaTapuKPapaGada how does -ve sign matter, it is still left sided signal. See example 2

[@techzonelearning4003]

Thank You Sir. Superb Explanation 👌👌

[@parthib.1555]

H/W : ROC -> -3 < sigma < -2

[@sharronmanak4784]

Very helpful, thank you

[@AdityaKumar-hz9um]

i love you sir
you are best neso

[@angeldemon2692]

How to calculate Roc for signals other than exponential

[@nikhil_legend16]

ROC 1 : σ < -2
ROC 2 : σ > -3
common ROC: -3 < σ< -2
STRIP:both sided signal
unstable
not absolutely integrable

[@nitinkamra8972]

sir Roc is in strip form and exist between -3 and -2 ,so it is both sided

[@sowmikaraj6560]

👌🏻sir! Tq fr this video!

[@avinashmuraleedhar]

As H.w doesn't include jw axis...it should be unstable right.thanks

[@nitishkumarprajapati6096]

Thanks Sir🙏🙏

[@ippililokesh9238]

what is the shortcut method to find ROC for other than exponential functions..?

[@eyosiasbitsu4919]

i was also wondering the same thing

[@kanishkjaiswal5088]

e^0

[@giridharvarshney9380]

this is a channel in which foreign people coming and learning by an indian

[@-Ramanaidu]

sigma < -2 in roc 1
sigma > -3 in roc 2
common roc for both and LT exist the common roc is the left side of the plane

[@ThColinPereira]

this is an amazing video! thank you so much!

[@RahulBRNEC]

Roc sigma>-3 , sigma>2 , common region sigma> 2,so Roc sigma> 2

[@ankurattri8248]

does this trick only works when we have u(t) multiplied with exponential signal or with any function multiplies with exponential signal?

[@saikumarpeddaboina9075]

With any other signal also but we have to know the other signal graph soo we can decide left sided or right sided.

[@shailesh4673]

thank you very much

[@littlesmallmook5406]

You safe my life

[@rohittiwari8060]

sir please post the videos of z transform

[@rockeykumar3348]

Roc between -3=

[@407vinay8]

-3

[@gopikrishnamoodu6152]

-3

[@Sumitkumar-el8gs]

Yes common roc lies between -2 to -3

[@ajagadeesh375]

-3

[@realislamicguidance2375]

Laplace Transform converges (gives finite value) in ROC. How is this information (the finite value of LT) help us anyhow?

[@soumyajyotikundu7147]

-3

[@samarthagarwal417]

ROC b/w (-3 to -2)

[@ShravanBandaru]

Sigma lies btwn -2 & -3.

[@rprvk]

ROC exists and lies between -3

[@chetna_04]

it is between -2&-3, LT WILL EXIST

[@prithvirajsinhrathod9920]

Ur answer is correct laplace transform exist b/w -2& -3...

[@dhruvgupta1740]

But 1st exponential term do have negative sign than it should become right sided signal na ???

[@dhruvgupta1740]

And if right sided signal than ans should be -2to infinity

[@shubhambhavsar7958]

@@dhruvgupta1740 no man just care about the real part of exponential

[@sn-df6cn]

@@shubhambhavsar7958 are you sure ?

[@aayshajha4601]

-3

[@abhishekdash1848]

Sir if u have the correct solution please share with us
My answer is "-3

[@ashutoshvyas5331]

Roc : sigma>-2, sigma >-3
Since the imaginary axis lies then lti is stable and system is RSS

[@mr.phoenix3736]

no

[@naveen7282]

-SIGMA-2

[@reficeismail6520]

ROC Between -3 & -2

[@ee19gauravshrivas18]

(-3,-2)

[@vikayakumari944]

tq sir

[@shaillybhai007]

stable between -2 and -3

[@mbhagyarajareddy4639]

-2 -3

[@littlesmallmook5406]

ROC = -3 < sigma < -2

[@raj_kumar08]

ROC between -3 and -2

[@parthmodi5734]

Roc: - 3

[@AnandKumar-dn5rm]

-3

[@saranshgupta9119]

My answer is also same. No difference

[@ksrbana9281]

S>-2

[@bupi.]

what about the dirac function? how to find ROC?

[@venkateshr2097]

Supr

[@mr.unique7689]

common roc lies between -3 to -2...than you..

[@satyaweeryadav3972]

z transform ka lecture dalo sir

[@sayanid3338]

-3

[@sountharyar6986]

Between 2 and-3

[@bun_zees3245]

Between -3 & -2

[@purushotthamaht7541]

Roc is lss in-2&roc is rss for -3

[@Amit-b9q2j]

Common ROC is -3 to -2

[@swarajyalakshmi7186]

how to find roc if there is no exponential term in the signal

[@vinaypant557]

Swarajya Lakshmi there will be always exponential siganl

[@roshangupta8161]

Sigma>-2????

[@sumitchaudhary4894]

if sigma=O then ros?

[@masmoudisami6527]

-3

[@bhargavtharun]

answer for h.w problem

[@kolanaresh7077]

LT exit
unstable because there is no imaginary axis so it is not absolutely integrable

[@chidanandadatta4695]

Alfa between -3 and -2 ..

[@pritpatel4772]

same as 2nd

[@LifeTapestry365]

Here no common pole so s/m is unstable

[@MohanRam-kp4rp]

both are rss so roc is >3

[@vishnuviratian6143]

(Sigma-3) how it is possible .

[@muskangpt19]

common roc b/w -2 and -3

[@svdf6931]

Segma less than -2 and segma is greater than 3

[@svdf6931]

Segma is greater than-3

[@yogita6573]

ROC LIES BETWEEN -3 & -2
LT-exist
UNSTABLE & NAI

[@elizabetholawale2383]

Sir please what's the answer

[@rahulangadi7683]

Hii ,its stable

[@deepbasediya5751]

Sigma < 2 and sigma > -3 LTI is stable

[@bhattsmit2246]

LTI is unstable as it does not include the imaginery axis!!

[@gundaff3047]

Yes it's stable

[@gundaff3047]

When Sigma

[@iconstar1917]

Wrong answer

[@ganesharts4748]

Roc is exist

[@SamiyaKhaliq]

What's the answer if the h.w?
sigma >2

[@Monugupta-qd9ud]

For sigma> -3 and sigma>2 Then 1. LT exist.
2. Not Stable system.
3.Not Absolutely integrable .

[@ravindersinghdhillon3942]

Common ROC b/w -2 to -3 L.T exist

[@gnquince]

How sigma>-2 ??????

[@jagranitiwari2101]

How to know whether a given waveform is LSS or RSS?

[@anushakommu5177]

Based on the sign if it's positive then right sided signal

[@irfanullah5488]

Segma >-2

[@pummysingh8523]

Roc> -2

[@medhanshmathur8108]

Roc = sigma > -2

[@HiPankajSharma]

roc > -2

[@parthmodi5734]

Pankaj Sharma can you check ur ans again bcz i m getting - 3 to - 2

[@HiPankajSharma]

parth modi there is minus sign so I think roc will also be the difference

[@parthmodi5734]

Pankaj Sharma no minus sign will not affect

[@godishelping]

both the signals are RSS. For first signal, roc > -2 and for second roc > -3. So the common roc will be roc > -2. Hence roc > -2 is the correct answer.

[@VikasKumar-ec3yu]

roc > -2 correct

[@syedafzal2062]

Entire S-plane

[@DayaTapuKPapaGada]

ROC is sigma>-2

[@zz5013]

You wrong

[@simpleJoee]

No roc is the ans

[@saigiddaluru2625]

No common ROC-->NO L T

[@kaavyasameerasajja6730]

-3

[@prachigupta6232]

ROC: -3

[@shehanvidanapathirana1292]

-3< sigma < -2

[@shuvbhowmickbestin]

-3