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@kk_lyrics Күн бұрын
🎉
@ZigaplaysPUBGYT 7 күн бұрын
2.6 N
@gloriapearl6084 9 күн бұрын
Sir, I wanted to make a suggestion I think I found out an alternative way to solve without actual experiment; and it's T=4π✓(IL/mgd²) Where I is the moment of inertia L is the length of extension of the thread m is actually the sum of the mass of the meter rule and the masses presented d is the distance between the threads I= Ml²/12 Where M is the mass of the ruler ( 0.171kg) l is the length of the ruler(1m) I= 0.171×1²/12 I= 0.01425 Let me use your values I= 0.01425 L= 0.7m m= mass of meter rule and the 0.05kg mass m= 0.171+0.05=0.221kg d= 0.9m T=4π✓(0.01425×0.7/ 0.221× 9.8 ×(0.9)² T= 0.94795 Sir I need validation, is it right to use it this way? I solved for other masses too
@PhysicsWithBen 9 күн бұрын
What a brilliant 👏🎉🎉🎉 contribution! I can see you are VERY SMART 🤓. Only smart people can use equations and run experiments to get PRECISE VALUES. I have checked all the equations you have used! I have seen your expertise in combining basic equations to form complex equations. I have seen all your conversions . I have seen your correct usage of the equations you have provided and also the CORRECT SUBSTITUTIONS. I have seen your correct evaluations of substituted values. I hereby sertify that your suggestion to use the above equation to manipulate the experiment is very correct. Please go ahead. You are very smart 🤓. Please, I wish to know more about you. Thanks once again for your brilliant contribution. Send me regards to your Physics teachers, they have taught you well. God bless you.
@gloriapearl6084 9 күн бұрын
Sir it's actually gotten from the fact that K=L/✓12 So, The moment of inertia can also be represented as Mk² as it would still come out as Ml²/12
@PhysicsWithBen 9 күн бұрын
I have honored 🥰 you by pinning 📌 your brilliant comment for the whole world 🌎 to see and learn from you.
@gloriapearl6084 9 күн бұрын
Thank you so much sir , I didn't derive the formula myself but I was able to fit the variables in because they were confusing at first. The m and M, the L and l but I found out how to correctly use it after trying different variables inserting masses and checking out past questions. A day before my waec alternative b practicals, I realized everything. Thank you so much sir for looking into the solution, I praise you for not looking down on me but listening. God bless
@PhysicsWithBen 9 күн бұрын
@gloriapearl6084 was this what you did on the day of your WAEC? If YES , then you were very correct. I don't look down on people, but I respect everyone for WHO THEY ARE ( Human Beings) , and not WHAT THEY ARE ( rich, poor , etc). Try and have what is called SELF CONFIDENCE IN YOU , OK? I am telling you today that you are VERY SMART.
@bigjohhny7261 12 күн бұрын
physics is REALL!!
@ugochioparaoha589 17 күн бұрын
Well I think you deserve more.keep doing the things you do best.😊❤
@PhysicsWithBen 17 күн бұрын
Thanks and God bless.
@Bishop_of_Cloud9ine 17 күн бұрын
Thank you sir for the Practicals Your vids made it a walkover for me, especially plotting of graph was easy. God bless you❤️💯💯💯
@PhysicsWithBen 17 күн бұрын
AMEN 🙏. I love this feedback.
@user-rg5lo6ks4k 18 күн бұрын
Thanks for not leaving us out
@PhysicsWithBen 18 күн бұрын
God bless you. Success all through , I wish you.
@marisify 18 күн бұрын
Thank u sir. GOD bless u. Are the values meant to be in the same decimals
@PhysicsWithBen 18 күн бұрын
Amen and Amen. Thanks. Just write the values the same way I wrote them.
@user-nq5ps8og1l 18 күн бұрын
For the slope i got 0.7813A/V
@NsudeJessica 18 күн бұрын
Sorry sir , for the stress The lord is your strength
@PhysicsWithBen 17 күн бұрын
Amen. Thanks very much. I wish you success in your examination.
@user-nq5ps8og1l 18 күн бұрын
For the intercept i got -0.45v-¹
@user-nq5ps8og1l 18 күн бұрын
I'm following every step in the video but it's only two points that enter the line of best fit
@user-zv7fv1xk4i 18 күн бұрын
ThAnk you for the explicit video
@PhysicsWithBen 18 күн бұрын
You are welcome.
@user-nq5ps8og1l 18 күн бұрын
Wow 😲
@NsudeJessica 18 күн бұрын
But thanks a lot this was useful
@NsudeJessica 18 күн бұрын
There is a mistake on the table You were misplacing I/A with V/v
@ugochioparaoha589 18 күн бұрын
But I thought question 1 was on mechanics Question two on optics and question 3 on electricity. Now you're saying question one is on optics. What is question 2 and 3 then. Please sir I need to know.
@PhysicsWithBen 18 күн бұрын
Please, I think 🤔 there is a mix-up somewhere from the side of WAEC... I don't know, but that is how this year's WAEC Physics 3 Practical Alternative B is. Thanks 🙏.
@KazeemOlaniyan-po4cc 18 күн бұрын
Thank you very much sir for taking the stress in teaching us this
@PhysicsWithBen 18 күн бұрын
God bless you. I am encouraged.
@KazeemOlaniyan-po4cc 18 күн бұрын
U can find the other values using the general lens formula F=UV/U+V after which we substitute the the value into the equation
@PhysicsWithBen 18 күн бұрын
You are very correct, we call it OUT SMARTING THE EXPERIMENT.
@adebayoolagunju381 18 күн бұрын
Thank you sir
@PhysicsWithBen 18 күн бұрын
I am encouraged. God bless you. I wish you success in your tomorrow's examinations.
@bonifaceufotubom 18 күн бұрын
Sir please how will I know the wires to connect
@PhysicsWithBen 18 күн бұрын
When you make the circuit and notice a deflection on the Ammeter and Voltmeter to the right.
@idayatshuaib-wd8pg 18 күн бұрын
Thanks sir ❤
@PhysicsWithBen 18 күн бұрын
God bless you. Wish you success.
@Me.Me2520 18 күн бұрын
Good evening Sir, thank you Sir, I think the practical for this year is from 2009, it correlates with the items the school was asked to provide
@Me.Me2520 18 күн бұрын
The only difference was that waec told the students to record height/length
@PhysicsWithBen 18 күн бұрын
Also check 2021. Thanks.
@PhysicsWithBen 18 күн бұрын
WAEC 2021 is the most closest to this year 2024 practical. I have gone through it. Better still, you can combine 2009 and 2021 to get a holistic knowledge. But I hope the video is not our of place?
@Me.Me2520 18 күн бұрын
@@PhysicsWithBen ok Sir, I want to check it now,in 2021 they were provided with thread instead of tape.. I am about to go through I properly now.
@alexonwudinjoh3409 18 күн бұрын
I no even dry hear you
@PhysicsWithBen 18 күн бұрын
I don't get this!
@NdukweAnderson 18 күн бұрын
❤🎉🎉
@NdukweAnderson 18 күн бұрын
Awesome, but noticed the key wasn't removed before and after reading
@PhysicsWithBen 18 күн бұрын
You are very observant. I corrected that later. Thanks 🙏.
@NdukweAnderson 18 күн бұрын
@@PhysicsWithBen sorry. Thanks anyway
@PhysicsWithBen 18 күн бұрын
A COMPLETE PLAY LIST FOR WAEC 2024 PHYSICS 3 ALTERNATIVE B PHYSICS PRACTICAL, for Question 1 , 2 and 3 , Electricity , Optics and Mechanics . 👇👇👇👇👇👇👇👇 kzbin.info/aero/PLW23x37hYF1I2pE4NnsOqyGz1r58yMXZa&si=-ATx5LQF6gt73_jg
@frodowayne7162 18 күн бұрын
How to find the internal resistance tho?
@PhysicsWithBen 18 күн бұрын
Watch the video please.
@tomisinsobanjo7537 18 күн бұрын
Should we used 4 when not given internal resistance
@frodowayne7162 18 күн бұрын
@@tomisinsobanjo7537 they will never give internal resistance
@frodowayne7162 18 күн бұрын
Pardon, is this the correct form of oscillation?
@onyebuchiukeoma5893 18 күн бұрын
What if the focal length is given in the question...do we go ahead using it to find the value for the image distance and object distance respectively by manipulation or we should use something else?
@frodowayne7162 18 күн бұрын
The focal length of the lens waec asked schools to provide is 15cm for alternative B 2024. I've seen the white paper
@frodowayne7162 18 күн бұрын
It won't be given in the question
@PhysicsWithBen 18 күн бұрын
Always verify it is 1.5 cm, or you will get wrong VALUES. It won't take you 2 minutes to verify that. Watch the video I published on this.
@timzy_dammy 18 күн бұрын
Thanks
@a_t_n1. 18 күн бұрын
good job my friend
@Bsilver482 18 күн бұрын
Please read jee main or jee advanced physics ❤❤
@PhysicsWithBen 18 күн бұрын
Thanks I will.
@Bsilver482 18 күн бұрын
Jee mains physics
@mohammeddrammeh1437 18 күн бұрын
What are the internal resistance of each
@user-ng1xy5oc7i 18 күн бұрын
Is this conical oscillation or horizontal oscillation?
@otaghoghoatirene2767 19 күн бұрын
What about question 3 on physics alternative b mechanics?
@user-xm9ii3bi3c 19 күн бұрын
Sir, is it compulsory i put the broken line when tracing the slope on the graph, can't i read the value out and input it into my slope formula without putting the broken line on the graph ? if i draw my triangle and read out the values without putting the broken line on the graph will WAEC minus mark from my graph?
@PhysicsWithBen 19 күн бұрын
Just DO AS I DO. Thanks 🙏.
@AnthonyOnyiaodike 19 күн бұрын
U can find the other values using the magnification formulae M=V/U after which we substitute the given U parameters into the equation to find the corresponding values of V.
@salawudeensulaimon20adelek30 19 күн бұрын
What of videos on optics and mechanics
@PhysicsWithBen 19 күн бұрын
Read the pinned comment...
@olamijuabimbola8440 19 күн бұрын
Sir why is the number after the decimal place not constant. Why did you use 3 decimal place for the V and I inverse.
@user-dz4yk7hk9u 19 күн бұрын
😢 Sir, you have not uploaded the mechanics alternative B 😭
@PhysicsWithBen 19 күн бұрын
Stop crying 😂... I was only chanced to make videos for Optics and Electricity
@matthewoluwaseyi1342 19 күн бұрын
My oga at the top, God bless you abundantly,and may he reward you in Jesus name
@PhysicsWithBen 19 күн бұрын
Amen and Amen...🙏. Thanks very much and you too.
@samsonsimon7864 19 күн бұрын
Sir please do you have the whole question. It is only electricity that I have been seeing
@PhysicsWithBen 19 күн бұрын
Go through the comments...
@otaghoghoatirene2767 20 күн бұрын
what about mechanics in alternative b?
@PhysicsWithBen 20 күн бұрын
Very busy at the moment...
@otaghoghoatirene2767 20 күн бұрын
You are such a great physicist. i love you boss.
@PhysicsWithBen 20 күн бұрын
Thanks 🙏, love you to.
@Seunoduwole 20 күн бұрын
Sir, what of the videos of mechanics and light for alternative B
@PhysicsWithBen 20 күн бұрын
Very busy with other things, just drop these for you guys.
@user-xm9ii3bi3c 20 күн бұрын
Thanks sir, please sir can you do a video for manipulating the table value 🙏
@PhysicsWithBen 20 күн бұрын
Yes, soon
@onyebuchiukeoma5893 20 күн бұрын
Sir is it possible to manipulate the readings with formula to get accurate results instead of doing practicals in the exam hall?
@PhysicsWithBen 20 күн бұрын
Yes, it is possible. But you have to FIND THE FOCAL LENGTH OF THE LENS. Then use , 1/ f = 1/ u + 1/v. For Electricity, you can also manipulate, but it is a bit difficult. You need to know the value of the unknown Resistor, R, and then apply Ohm's Law Equation, V= IR. However, examiners will know that you have manipulated the experiment.