Grade 12 Physics | Photoelectric effect| Full lesson

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Mlungisi Nkosi

Mlungisi Nkosi

2 жыл бұрын

Optical phenomena and material properties
In this lesson you will learn the necessary theory on the Photoelectric effect:
- the duality of light
- the wave nature and the particle nature of light
- what is a photon
- how to calculate the Energy of a photon
- how to calculate the work function of a metal
- what is the threshold frequency
- how does intensity affect the Photo-current
All of this compressed into one lesson.
Finally I also tackle one past-exam question from SC/NSC 2019 Exam
Enjoy!!!

Пікірлер: 256
@thandimamba7076
@thandimamba7076 Жыл бұрын
Just Went From Level 1 In Physical Science To Level 3 In First Term And From Level 3 To 5 In Second Term And Aiming For 7 In My Examination
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Wow!!! Wow!!! Wow!!! It’s the confidence for me 🔥🔥🔥🔥🔥🔥
@MasterKTSHIKS
@MasterKTSHIKS 6 ай бұрын
Did you get it?
@tumelomashiane6033
@tumelomashiane6033 11 ай бұрын
Law of Mlungisi-States that the more you watch his videos, the more you will pass Maths and Science at lesser work done per unit time
@mzansigotdrip1480
@mzansigotdrip1480 10 ай бұрын
🤣 I second this one
@mihlemanana86
@mihlemanana86 10 ай бұрын
So trueeee😂
@Nthabi_tenacious
@Nthabi_tenacious 10 ай бұрын
😂😂
@guts1859
@guts1859 7 ай бұрын
Mlungisi watchtime is directly proportional to maths and physics marks
@mahlatsepuso1633
@mahlatsepuso1633 2 жыл бұрын
Sir o star🏆🏆
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
And le wena o tloba star 🌟 Just watch those results as they transform
@mihlaliguga1698
@mihlaliguga1698 Жыл бұрын
@@MlungisiNkosi mine are transforming already, from getting level 3, I'm now on level 5 but aiming for level 7.🥰
@tapiwamutasa9295
@tapiwamutasa9295 2 жыл бұрын
I watched this in 1.5x speed and understood in 30 minutes 😭 you explained in 30 minutes what my teacher couldn’t in 3 hrs.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
I can only imagine what I sound like at higher speed 😂. I wouldn't dare listen to myself... Thank you so much. Please do appreciate your teacher's efforts as well. S/he is doing their best under the circumstance...
@tinaye8638
@tinaye8638 2 жыл бұрын
Lol you also writing tomorrow neh😭💔
@ruthc6791
@ruthc6791 Жыл бұрын
@@MlungisiNkosi I actually listen to all your videos at x2 speed because I want to watch ALL the content in time💪🏆
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
@@ruthc6791 I can only imagine how weird I sound 😂
@Tink29
@Tink29 10 ай бұрын
I thought i was the only ond who did that , it's either 1,5x or 2x 😂😂❤️ love this guy , he's brilliant. Some of our student teachers watch his videos then they come teach us in class what he says on his videos WORD FOR WORD and i go like uh oh I've heard this before..but i probably would too he's just too good😂
@samkelisiwembulawa363
@samkelisiwembulawa363 2 жыл бұрын
All of your videos are different in their own way✔🙂. The is a very painful thing, watching a lesson or a video several times but still don't understand what is happening, I've experienced that and I ended up accepting that physics is not 4me. but now that I am a part of this family I love physics and I know every chapter from the start😊 I understand everything, because of you Sir, you are a blessing from God 😊💗
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You scared me a bit in how you started... Lol. But I love the build up to your story. Thank you so much and I'm wishing all of God's best as you prepare for exams. Keep up the great work
@samkelisiwembulawa363
@samkelisiwembulawa363 2 жыл бұрын
Am so hurt that u gonna start mathematics when am no longer in high school I don't know whether I'm gonna need maths there or not😖, but my maths teacher is like you🤓😉she makes everything easy☺
@samkelisiwembulawa363
@samkelisiwembulawa363 2 жыл бұрын
But sir why teachers who teach physics or maths don't teach both of them🤔?
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
@@samkelisiwembulawa363 those that can.. Do.
@trevorkhetsekile7864
@trevorkhetsekile7864 Жыл бұрын
Thank you sir. Your videos really help us out here. I got 93% for Physical Science in September and I am aiming to get 100% in my final exam
@Nthabi_tenacious
@Nthabi_tenacious 10 ай бұрын
Please give me tips 😢 Am stuck on 80's
@melissamusareva3977
@melissamusareva3977 10 ай бұрын
Me too ey I really need those tips 😭
@nozipho6119
@nozipho6119 10 ай бұрын
⁠@@Nthabi_tenaciousno but can I have your tips😩🤲🏽
@sifisoxulu7739
@sifisoxulu7739 2 ай бұрын
Plz show me you Exam mark 😊
@linamandlamotlotsi4633
@linamandlamotlotsi4633 2 жыл бұрын
my guy,you the reason why I get distinctions in physical science#classof2021
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
I celebrate with you... Well done. 😊
@mikeoxlong393
@mikeoxlong393 2 жыл бұрын
Sbwl
@KeithNjenge
@KeithNjenge Жыл бұрын
@@mikeoxlong393 🤣🤣🤣🤣
@oarabilesiyabongamaine3761
@oarabilesiyabongamaine3761 2 жыл бұрын
Every since i have been watching your channel i have improved in my physics, I went from level 3 to level 6.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Wow!!! It's these kind of stories that make it an absolute blessing to serve.
@makgethwaphala7668
@makgethwaphala7668 2 жыл бұрын
Wow that's amazing! Keep it up for the trials and finals ❤️
@sifisoxulu7739
@sifisoxulu7739 2 ай бұрын
​@@makgethwaphala7668Share your final mark in Physical Science 😊
@bryangomez4136
@bryangomez4136 2 жыл бұрын
Our MINISTER of PHYSICS😎ENJOYED IT🤜🤛
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Wow, I see you've been incredibly busy the past 24 hours. I smell a distinction 😊
@BoundBy_Faith
@BoundBy_Faith Жыл бұрын
this section does not require that much work and energy tbh, you are saving us from 100 pages of textbooks just to grasp these basics you covered in less than an hour
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
It is my pleasure 😇
@DylanSwarts
@DylanSwarts Жыл бұрын
Thanks for your hard work in producing these videos! I'm a 90% Physical Science student and it always helps to have good videos that I can use as refreshers or to build a better understanding on fundamental concepts I may have forgotten over time.
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
It’s my pleasure. You’re most welcome
@nokuthulagumede4339
@nokuthulagumede4339 10 ай бұрын
​@@MlungisiNkosiif given v how do i know whether it's vrms or vmax?
@ntsakisoo.m
@ntsakisoo.m 2 жыл бұрын
I wish I found this channel before my prelims, I’ve watched all of them and I understand my work. 😩🤝
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Askies... Now that you have discovered this gold mine, do share it with others. All the best for your exams
@bonniem1865
@bonniem1865 Жыл бұрын
sometimes i get teary eyed mid video because i appreciate you sharing your teaching ability to help those of us that struggle to understand. Thank you so much
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You are so welcome… You comment fills me with tears
@Nalstar21
@Nalstar21 Жыл бұрын
Just wanted to say shout out to 🫵 man. I’m definitely mentioning you when I’m rich and famous🙌🏽🙌🏽🙌🏽
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Wow thank you 🥳🥳🥳🥳🥳🥳 I’ll be happy to be mentioned by the greats
@MafefeAcademyTutors
@MafefeAcademyTutors Жыл бұрын
Man, you're good with this. I am a civil engineer, but I missed some of the most essential lessons. Thanks for helping us catch up thanks.
@georgejungle9017
@georgejungle9017 2 жыл бұрын
Man bless your Soul I have my prelims tomorrow and I just want to say thank you you've saved me and a lot of others heartache. I hope more physics students discover this channel and again thank you.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
It's my sincere pleasure...
@thecumbender4404
@thecumbender4404 2 жыл бұрын
When sir said not that type of weed I died🤣
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
😂😂😂😂😂😂😂😂 I'm glad you got the humour
@tinyikoluyandamathe9730
@tinyikoluyandamathe9730 2 жыл бұрын
He knows 🤣🤣
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
@@tinyikoluyandamathe9730 😂😂😂😂
@triciayang9165
@triciayang9165 2 жыл бұрын
Yoh! This man saves lives
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Thank you ❤️
@lunaaa.s
@lunaaa.s 6 ай бұрын
writing my final tomorrow and this is my first time fully understanding this topic , thank you so much sir [ literally just started studying an hour ago😔]
@Kumandra_Bullock
@Kumandra_Bullock 2 жыл бұрын
I'm so gonna slay my exams with these...thank you sooooo much
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Yeah... Let's do that. 😄
@mlungisijunior3049
@mlungisijunior3049 2 жыл бұрын
Good day, Sir....I'd like to start by applauding you for all your phenomenal physical science videos and teaching techniques, they really do come in handy and are much appreciated....But I have a request for you to please dig further on the photoelectric effect and perhaps do a video on the emission and absorption spectrum as I have a problem understanding the concept....Looking forward to your response Sir
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Bitso... I've heard you and I'll do the right thing 👍🏾
@Movies0700
@Movies0700 2 жыл бұрын
Your lessons just made my revisions simple and manageable ❤️👌🏾
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
It's my pleasure... You are welcome.
@sandramapfumo4167
@sandramapfumo4167 Жыл бұрын
Anybody else trying to save their grades before it's too late. Dankie malume
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Let the grades be saved on time…
@nomvelosibanda5013
@nomvelosibanda5013 2 жыл бұрын
How i wish you my teacher from grade 10,lesseons are so understandable
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
I am now... 🤗
@bulelanihlakula7187
@bulelanihlakula7187 Жыл бұрын
Thanx a lot Dr Nkosi. I am so empowered listening to this video
@lwazilnt6165
@lwazilnt6165 10 ай бұрын
Thank you so much Mr Nkosi, i really appreciate you
@calvinbafshoe2626
@calvinbafshoe2626 2 жыл бұрын
Interesting chapter I love it. One of the chapters I really need to focus on and do research on when I will be doing my master's degree. I relate to the energy of the photon as the force applied and work function as the static friction of the object. In order for a person to move/accelerate an object, the person must overcome the static friction of the object. And so in this case the energy of the photon which is force applied must be greater than the work function for the electrons to be emitted.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Excellent sir... It is exactly the same thinking.
@siyabulelampinge564
@siyabulelampinge564 2 жыл бұрын
Jeez Brue,what an explanation,big it up by the way and good luck on your masters
@calvinbafshoe2626
@calvinbafshoe2626 2 жыл бұрын
@@siyabulelampinge564 Thanks man 🙏
@tickled41
@tickled41 Жыл бұрын
This has been the most helpful video! I've been stumped on this and watched so many vids to try to figure it out. thank you so much!!
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re welcome
@taurabenning4094
@taurabenning4094 2 жыл бұрын
Thank you so much, this made me understand the topic completely! I'll be visiting your page whenever I get stuck in the future.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You're most welcome... Please feel free to use this channel as a resource whenever you need to. Don't forget to subscribe 😊
@mariamismail9646
@mariamismail9646 Жыл бұрын
Absolutely Fabulous!!! You've made such a troublesome section so simplified
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
The pleasure is all mine
@user-ck4zv2cs4w
@user-ck4zv2cs4w 7 ай бұрын
I'm writing physics in 20 days if am not mistaken. And I'm really struggling in physics but I'll hope I'll get a good level when I get my statement. But you surely are a good teacher ❤thank you sir.
@MlungisiNkosi
@MlungisiNkosi 7 ай бұрын
Thank you so much
@Lebogang_shabangu
@Lebogang_shabangu Жыл бұрын
Writing tomorrow and this is my first time understanding this. Thank you sir
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re most welcome
@hastings4949
@hastings4949 2 жыл бұрын
I now have hope in this subject. I am much grateful sir ❤
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You're welcome
@ricardochilima8644
@ricardochilima8644 Жыл бұрын
No cap😂😂... Hope once again
@theboysash6736
@theboysash6736 Жыл бұрын
No one gonna talk about “not that type of weed” 🤣🤣🤣 we love you sir❤️
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 Your uncle knows how you guys think
@senseitv1928
@senseitv1928 2 жыл бұрын
In Mlungisi Nkosi I believe 😤🔥❤
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Lol... Thank you so much
@prinsxx
@prinsxx 2 жыл бұрын
I finally understand!😢💖 Thank you so much Mr N
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Nothing makes me happier 😊
@siphamandlalihle4662
@siphamandlalihle4662 2 жыл бұрын
Wow i understood it just like that.. 😀 u are amazing sir give us more videos👍👍
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You’re welcome
@lula1626
@lula1626 Жыл бұрын
Thank you for the video I really understood (I've been struggling with this topic so this was a huge help) 🙏
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re most welcome 🤗
@Trulynelssssss
@Trulynelssssss Жыл бұрын
Thank God I’ve come across this three weeks before my exams😍
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You got this!
@user-wf9xz8es8o
@user-wf9xz8es8o 11 ай бұрын
What a fascinating lesson!thank you sir!👋😍
@MlungisiNkosi
@MlungisiNkosi 11 ай бұрын
Glad you liked it!
@user-he1bi2eu3e
@user-he1bi2eu3e 10 ай бұрын
Sir u are a 🌟 and I'm sure I will improve in this subject
@kayisemkhwanazi2030
@kayisemkhwanazi2030 Жыл бұрын
Thank you sir......how I wish that my online classes be like this one😱🔥
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re welcome
@ChinecheremPurity-fq5cj
@ChinecheremPurity-fq5cj 11 ай бұрын
Thank you so much sir for saving me in this topic Just preparing for my exam tomorrow
@mpumuzisibande8026
@mpumuzisibande8026 10 ай бұрын
Thank you so much for this Ankel
@amahlejama822
@amahlejama822 Жыл бұрын
Thank you Sir this was sooo helpful!!
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re most welcome 🤗
@justinefuller6363
@justinefuller6363 Жыл бұрын
Amazing explanation!
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
My pleasure
@couragedabooz8004
@couragedabooz8004 2 жыл бұрын
This guy is a legend
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Thank you 🤗
@chawapiwaelionoramunyimani353
@chawapiwaelionoramunyimani353 Жыл бұрын
thank you so much i now understand the photo electric effect much better now 😊😊😊😊
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
It’s my pleasure
@lebohangmotshoso2262
@lebohangmotshoso2262 Жыл бұрын
This is top notch mnr, thank you so so much
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re most welcome
@ssetimbakizito5290
@ssetimbakizito5290 2 жыл бұрын
I do appreciate your efforts Sir
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
It’s my pleasure
@witkamuleya9772
@witkamuleya9772 2 жыл бұрын
Thnks bro, your videos have been so on point. Please do one on uniform circular motion .
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You're welcome... May I please find out which area/country you're from?
@yyuu3588
@yyuu3588 2 жыл бұрын
Educative and easy to understand
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Thank you
@phophizwivhuyamatshepete3488
@phophizwivhuyamatshepete3488 2 жыл бұрын
Thank u. This was really helpful 👏
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Glad it was helpful!
@rev9434
@rev9434 2 жыл бұрын
This is awesome!!
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Thank you
@lethabomodise6197
@lethabomodise6197 2 жыл бұрын
THANK YOU SO MUCH FOR YOUR VIDEOS NOWADAYS I KNOW HOW TO ANSWER THIS KINDS OF QNS ONLY BECAUSE OF YOU THANK YOU SO MUCH
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
It's my pleasure.
@meganheher7975
@meganheher7975 2 жыл бұрын
Been waiting for this!!!!
@meganheher7975
@meganheher7975 2 жыл бұрын
Thank u so so much
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Be sure to check out the one after it.
@meganheher7975
@meganheher7975 2 жыл бұрын
@@MlungisiNkosi Will do sir.the notifications will ofcourse alert me😊 Ur videos are hleping me so so much ...more often during this time since the schools are closed.
@meganheher7975
@meganheher7975 2 жыл бұрын
@@MlungisiNkosi And sir may we please try to atleast do last 2 or 4 more questions on circiuts because iam kind of struggling 😭
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
@@meganheher7975 That's the reason I'll do my best to get as many lessons in as much as I can.
@SibongukuphiwaYaka
@SibongukuphiwaYaka 11 ай бұрын
🎉🙏❤️❤️thanks to our ankel
@simphiwekhanyile2185
@simphiwekhanyile2185 2 жыл бұрын
amazing 😭thank you so much
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Thank you 🙂
@sphephilezwane5539
@sphephilezwane5539 11 ай бұрын
I loveee thisss❤️❤️❤️
@kamuhelonkosi7409
@kamuhelonkosi7409 Жыл бұрын
You helped me a lot❤️
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re welcome
@kelemissm
@kelemissm 2 жыл бұрын
This has been so helpful 😭
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
I'm glad... 😊
@TshamisCorner
@TshamisCorner 2 жыл бұрын
❤️‍🔥❤️‍🔥❤️‍🔥thank you sir !
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
My pleasure... Let's keep working
@abutidripmakhathini6559
@abutidripmakhathini6559 Жыл бұрын
You Deserve An Award
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Please give me one
@aphelelephindiwe7943
@aphelelephindiwe7943 2 жыл бұрын
Sir for the last question 10.4 , will the same happen for voltage?
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Yes
@lungisanihlalekwenza7003
@lungisanihlalekwenza7003 2 жыл бұрын
Thank you SIR 👏👏👏👏👏👏👏
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You are most welcome. I'm glad I could assist...
@mamashegomathapelo7642
@mamashegomathapelo7642 Жыл бұрын
Writing today , and let's get those distinctions ❤️✌️
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
All the best
@ayeshabibisulaiman9915
@ayeshabibisulaiman9915 2 жыл бұрын
Thank you so much sir.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You're welcome
@simamkelemfiki5138
@simamkelemfiki5138 Жыл бұрын
Thanks mr Mlungisi🙏🙏🙏
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re welcome
@asandandwandwe6618
@asandandwandwe6618 2 жыл бұрын
God bless you Sir🥺
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Thank you
@teddyakatjedi1490
@teddyakatjedi1490 Жыл бұрын
Thank you sir l think l understand now 👍🤝
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re most welcome
@asandedlomo3271
@asandedlomo3271 2 жыл бұрын
Thank you sir✔✔
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You're welcome
@itumelengdesia945
@itumelengdesia945 2 жыл бұрын
Is it important for us to know or study about cut-off wavelength?
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Well, frequency and wavelength are related. It's worth knowing that relationship and being able how to apply it in the context of a question.
@evloghmenosxxx4035
@evloghmenosxxx4035 2 жыл бұрын
Can we use E=mc² also to calculate the energy if we know the mass ?
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Absolutely...
@evloghmenosxxx4035
@evloghmenosxxx4035 2 жыл бұрын
@@MlungisiNkosi after last term watching your vids I managed to get 96% … thanks
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
@@evloghmenosxxx4035 this is awesome... Keep going 😍
@zainabatall4326
@zainabatall4326 Жыл бұрын
this is so helpful thank you so much sir😭❤❤but sir can you make a lesson on the emission and absorption spectra
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
I will do so… 😊
@dimphomadibo7724
@dimphomadibo7724 2 жыл бұрын
Dankie dankie Sir 💃
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You're welcome 😊
@LuthandoDNgqulunga
@LuthandoDNgqulunga Жыл бұрын
You the best..
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Thank you
@thatwasawesome551
@thatwasawesome551 2 жыл бұрын
Thank you👐✌
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Awesome!!!
@nosiphomadlala3918
@nosiphomadlala3918 2 жыл бұрын
Hi sir, is work function the same as threshold frequency?
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
No, but they are related... Work function is the minimum energy required whereas threshold frequency required.
@TomSmith-zt5tx
@TomSmith-zt5tx 6 ай бұрын
class of 2023 to us that got 2hrs left and watching this video in 1.5 speed
@amahlenomthandazomaphanga8888
@amahlenomthandazomaphanga8888 2 жыл бұрын
According toI=Q/t since charge increases, current increases, how is time affected? If i were to use the equation to explain. however in an equation, there should be a variable that increases, decreases and a constant one. BUT its not so with this equation. Please clarrify this.
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Well, if it takes a lesser amount of time for the same amount of current to pass, then current has increased.
@kabelotoyana3035
@kabelotoyana3035 2 жыл бұрын
Thank you🥰
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
You are most welcome
@tanushrichetty6629
@tanushrichetty6629 Жыл бұрын
Hi sir.pls some videos in preparation for physics this Friday. Thank u
@botshelomailula3725
@botshelomailula3725 Жыл бұрын
Thank you🥺
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re welcome ☺️
@vicolenpadayachee4642
@vicolenpadayachee4642 9 ай бұрын
amazing
@MlungisiNkosi
@MlungisiNkosi 9 ай бұрын
Thanks
@eliasmaelly2988
@eliasmaelly2988 2 жыл бұрын
Dankie sir 💯💯o star🌟
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Danko 😊
@tselamashinini1450
@tselamashinini1450 Жыл бұрын
Thank you sir
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
You’re most welcome
@beatalabercensie545
@beatalabercensie545 Жыл бұрын
Legendary
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
My pleasure
@amvsenpai861
@amvsenpai861 2 жыл бұрын
Thank you
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
My pleasure 😊
@monicamoyo13
@monicamoyo13 2 жыл бұрын
May we please do prepatory past papers
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Which sections?
@Mylife-zj3bp
@Mylife-zj3bp 2 жыл бұрын
@@MlungisiNkosi maybe a full 2020 paper
@hlumisanamba9095
@hlumisanamba9095 2 жыл бұрын
Decrease in intensity results in decrease of emission electrons and kinetic energy what happens to it?
@hlumisanamba9095
@hlumisanamba9095 2 жыл бұрын
does kinetic energy also stay the same?
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
@@hlumisanamba9095 Kinetic energy stays constant 😊
@patriciaalexander4925
@patriciaalexander4925 Жыл бұрын
danko😁
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Wola 🙏🏾
@rainylizardseyes7904
@rainylizardseyes7904 Жыл бұрын
Hi sir can you do the kzn 2022 September physics paper 1 electrostatic and circuit question...really got stomped by it during exams
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Please send me that question paper
@mrdynamite12
@mrdynamite12 Жыл бұрын
Not him saying not that kind of weed
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
🤣🤣🤣🤣🤣🤣🤣🤣🤣
@yungbxiiiwavey2125
@yungbxiiiwavey2125 Жыл бұрын
Hello sir do you work on IEB papers
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
Yes there are on the channel… please check it in the videos section
@guts1859
@guts1859 7 ай бұрын
You've helped me improve my physical science marks from 80% in term 2 to 90% in prelims. Im hoping to increase it even more for the coming finals!
@MlungisiNkosi
@MlungisiNkosi 7 ай бұрын
Well done ❤️
@sifisoxulu7739
@sifisoxulu7739 2 ай бұрын
What mark you got in Final exam?
@perlemalaba
@perlemalaba 2 жыл бұрын
"Not that kind of weed"... Lol. Other than that sir, as'bonge!
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
😂😂😂😂😂😂😂😂 Danko!!!
@siyamadlokazi129
@siyamadlokazi129 2 жыл бұрын
I wish I saw this earlier in the year
@MlungisiNkosi
@MlungisiNkosi 2 жыл бұрын
Ahhhhhhh... Where have you been?
@BonganiMsiza-jv1pt
@BonganiMsiza-jv1pt 9 ай бұрын
"NOW LADIES AND GENTLEMEN PLEASE I WANT YOU TO NOTE"🥂
@MlungisiNkosi
@MlungisiNkosi 9 ай бұрын
The most important thing to note 😊
@MlungisiNkosi
@MlungisiNkosi 9 ай бұрын
😂😂
@nokuthulagumede4339
@nokuthulagumede4339 10 ай бұрын
If ure given v..how do u know whether it's vrms or vmsx?
@MlungisiNkosi
@MlungisiNkosi 10 ай бұрын
You will be told
@muhammadessa8922
@muhammadessa8922 Жыл бұрын
Whos here before phscs 2022
@MlungisiNkosi
@MlungisiNkosi Жыл бұрын
🤣🤣🤣🤣🤣🤣🤣🤣🤣
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