Really appreciated. Not enough A level content around, especially not quality content like yours.
@ScienceShorts6 жыл бұрын
+Jackudy Games Thanks!
@pavanrai69046 жыл бұрын
I've learnt more from your 12 min video on how to tackle a potential divider problem than I have from my actual teacher for over a year, so thank you.
@kyliek.94815 жыл бұрын
Pavan Rai my teacher gives us questions to do but never properly teach the content
@GameRanger464 жыл бұрын
same, never thought i would understand this thing guess they just dont have any patience or aptitude for teaching
@anikabhuta13264 жыл бұрын
Same same
@datonebro613 Жыл бұрын
@@anikabhuta1326 Man idk if youre in uni now, but this video brings me a tear of joy, a sliver of hope and a light at the end of the tunnel.
@Nafeelllll11 ай бұрын
Exactly there is barely any good physics teachers rn
@Rich-Richards5 жыл бұрын
never seen such a clear and clean explanation in yt videos, many thanks
@lidlpropagandaministry29015 жыл бұрын
1:28 Stalin approved
@wiktorblaszczynski72705 жыл бұрын
I don't think I get the joke help me out please
@lidlpropagandaministry29015 жыл бұрын
@@wiktorblaszczynski7270 "equal share"
@wirag46804 жыл бұрын
pertaining to communism, if you still don't understand :D
@nosir14793 жыл бұрын
I thought it was an execution joke
@alandingleton6975 Жыл бұрын
@@wiktorblaszczynski7270 communism
@baheerbaz33296 жыл бұрын
mocks tomorrow and these vids are helping
@abdullahalanezi74077 жыл бұрын
You know I can't thank you enough for your very thorough, clear and concise explanations! Electricity and light particle is my least favorite topics and you made it much easier for me to comprehend it! I salute your efforts sir! Love the videos, keep em coming
@shaheenchowdhury37364 жыл бұрын
The concept is laid down so clearly. Learned a lot. Thanks for the effort.
@Erica-rv7ze4 жыл бұрын
This was very well explained- in fact, I believe this is the best video out there explaining this concept!! Very big thank you :)
@sadafaslam81785 жыл бұрын
Logged in just so that I could like this video.
@l44305 жыл бұрын
great for both initially understanding a topic and also for consolidating and recapping any topics that you are rusty on last minute - thank you so much for the help! (exam on monday and physics is my worst subject but I at least feel like I understand the whole course thanks to you and your videos- it's just the application that can trip me up so after today it's time to hunt for any remaining past papers i haven't done yet)
@7490maddie5 жыл бұрын
good luck today!!
@l44305 жыл бұрын
@@7490maddie Thank you! Think it went okay thanks :)
@danielcawley10517 күн бұрын
@@l4430how did it go and how is life 5 years later?
@ytrew97175 жыл бұрын
the last part (what we can do with it) blew my mind, I finally understood something!
@AmanKumar-33035 жыл бұрын
Nobody ever explained me potential divider better... I have my 9701 AS level tomorrow and I owe you!
@sakifnewaz72125 жыл бұрын
I actually love these videos whenever I am confused it really helps me out and simplifies the content, amazing content keep it going please!
@sraheelaali98173 жыл бұрын
It helped me a lot , I have entirely grasped the concept of potential divider which was required according to my syllabus.I truly appreciate your effort.
@stanpeter80985 жыл бұрын
Thanks for your videos! I've appreciated your videos in many of your videos' comments but I just cannot thank you enough. You're the one who gives us salvation from physics!
@franknillard6 жыл бұрын
wow you help me understand a concept that i wasnt able to understand with any other person. THANK YOU SO MUCH!! AND KEEP IT UP WITH THE QUALITY CONTENT!!
@Momo-ci9ug2 жыл бұрын
Just saved my whole a levels in 13 minutes love this guy
@sugondhesenuts8383 жыл бұрын
My parents are wasting money on school frees. You can literally learn so much in such short time from youtube videos, thank you so much!
@ScienceShorts3 жыл бұрын
Don't forget, your parents can always make a donation via PayPal to me instead! 😊 bit.ly/scienceshortsdonate2
@heinzarniaung29152 жыл бұрын
Thanks for the timestamps. One of the best edu channels around
@charleyyross7164 Жыл бұрын
Very hard to revise for me, but after watching a few of your videos, i feel up to do date and ready for my second biology exam... Appreciate the videos a lot, and please keep doing more as they are helping me and alot of others getting reay for exams.
@nehakumaran60004 жыл бұрын
Never understood why resistance goes up in a light dependent resistor when light intensity decreases until I saw your video.. Thank you so much!! Finals are coming up in a week and I've been so stressed, so I'm really thankful for this video. Cheers!
@josswheeldon97375 жыл бұрын
Extremely helpful, been struggling with them a lot and this has clarified and answered all of my questions!
@gingjing32438 ай бұрын
there is just stuff i rather watch video on for revision than my notes, good video
@singularity55004 жыл бұрын
Wow amazing, the last part changed everything that I thought of electricity 😂. No more fear
@cheesenpickles1241 Жыл бұрын
Wonderful potential divider segment - first channel I've found to actually explain how the equation is derived. Thanks :))
@samuel317611 ай бұрын
Thanks man. You’ve actually helped so much. I’m gonna subscribe now because wow I’m amazed by how much I’ve learnt in just 12 mins
@yougottabemadasllmao5 жыл бұрын
one of the best revision channel for as levels alongside Erintoul and mr pollock!
@gus17552 жыл бұрын
This helped, glad I saw this before my a level exam in 5 days
@v0n12z11 ай бұрын
ive been struggling to get my head around the meaning/"roles" of each element in electricity, (especially how p.d. interacts with current) in an intuitive way not just through equations, the explanation of "higher resistance means its harder for electrons to pass through therefore they need more energy" really helped, idk how its never been explained to me this way before 😅 electricity has been the bain of my existence, i'll stick to mechanics thanks 😭
@elliewhiter6 жыл бұрын
Really useful. Could you do some more videos where you talk through A level electricity problems?
@hillybilly30286 жыл бұрын
Ellie Whiter Yeah i am also trying to find those videos
@Berna--gg7xs6 жыл бұрын
DrPhysicsA tends to do more videos on the maths solutions for most topics
@EpicAbid5 жыл бұрын
you are saving my a level physics. thank you
@alpha.beta.gamma.18433 жыл бұрын
I appreciate your channel a lot... you explain better than my teacher.... You just got a new subscriber
@HoshikawaHikari4 жыл бұрын
In the end, KZbin teachers like you help me understand better~ Thanks~
@igothacked37425 ай бұрын
guy made this 7 years ago, got almost 0 likes but still explains better than every a levels physics teacher on youtube
@ScienceShorts5 ай бұрын
I see 4700 likes 🤷♂️
@YoungBrokeBoon3 жыл бұрын
thanks for the help, couldn't get my head around this but you make it really easy to understand!
@jamiewhitehouse17086 жыл бұрын
OMG you are so much better than my actual physics teachers, thank you so much
@miesht4305 жыл бұрын
I absolutely love all your videos and they keep me going thank you so much
@seasnek70245 жыл бұрын
I don’t mean to sound dumb, but if the thermistor gets colder, shouldn’t resistance decrease? (Cause superconductors have almost zero electrical resistance when cooled to sub zero temperatures, so that’s why thought colder temp = lower resistance)
@user-kl4hb7my1r4 жыл бұрын
A NTC; "Negative Temperature Coefficient" thermistor works in the opposite way a normal resistor does. At low temperatures, the thermistor has a high resistance. As the temperature increases, the resistance decreases. This is because at higher temperatures the electrons have enough energy to escape from their respective atoms, meaning there are more charge carriers available, therefore the resistance is lower.
@eamonn50202 жыл бұрын
I know its a bit late but for anyone reading in the future superconductors dont have almost 0 electrical resistance they have exactly 0 electrical resistance
@minhtrinh997 жыл бұрын
Thank you
@Mirsab5 жыл бұрын
I was stuck at this for so long, thank you so much!!! It makes so much sense now!
@taz45304 жыл бұрын
Ur saving my GCSEs dude
@swapnanilde77364 жыл бұрын
Nice vid - anything about variable potential dividers would be a useful addition.
@vamshidarisi84004 жыл бұрын
swappy lmaooooo
@lawrencewinter4 жыл бұрын
Hi there, I have a question... At 10:58 you said that anything in parallel will get the same voltage. But, surely the heater's resistance in combination with the Thermistor's resistance will give them both an effective resistance which is different. Presumably the Heater part of the circuit is separated by some kind of relay or something so as not to combine with the Thermistor and affect the resistance of that half of the Potential Divider Circuit? Thanks.
@ScienceShorts4 жыл бұрын
Yes, in reality that is the case. This is just a general concept. Actually, in practice it will be a sensor, not the heater itself.
@jacobsmusic41865 жыл бұрын
Really helpful. Especially for revision! Great vids man,
@shujamukhtar45633 жыл бұрын
Now, that is what you call perfection.
@lollies68652 жыл бұрын
What is the purpose of the fixed resistor in the LDR set up?Why is it needed when the lamp depends only on the LDR's voltage and not the other one?
@oscarpoll43244 жыл бұрын
Slight mistake at 9:31 (in case you didnt know), you said total resistance instead of total voltage. Thanks a lot for these great videos!
@AbdullahiIdri20015 жыл бұрын
Are electrons sentient beings that can tell when there's more than one resistor in the circuit? Why don't they lose all their voltage to the first one? Sorry if i sound like an idiot lmao.
@AbdullahiIdri20015 жыл бұрын
Also, this was a quality video so thank you very much!
@dude_mude3366 Жыл бұрын
OH MAH GOD UR A LIFE SAVERERERERERER. Literal hero.
@maddocksjos6 жыл бұрын
How did you get so much pen on your hands??
@Awai_quotes2 жыл бұрын
You see for the last one if the light is bright (in a day ) can it reach this point where it wouldn't take any share of voltage and also would the lamp would still turn on even tho light is bright?
@adiedaylight Жыл бұрын
this is so helpful lol cleared all my confusions!
@emmacole22964 жыл бұрын
9:53 I can't find this equation on the AQA equation sheet? Do we have to memorise it? Thanks!
@gaminghats8134 жыл бұрын
idk but just use ratios is kinda ez
@Blueberrywee4 жыл бұрын
Nope, it isn’t on the eq sheet because it is a relatively simple and a derived formula from ratios. It’s pretty easy to learn so you can do that.
@xkl-physics72874 жыл бұрын
Sorry for asking lots of questions, electricity is very hard : why does the current through the LDR decrease?
@sebastianstanley15972 жыл бұрын
u are so good at explaining! Thanks.
@jamienewman14884 жыл бұрын
Hi in your potential divider circuit you drew at 7:11 , you included 2 rails 12V and 0 Volts instead of the battery. Could I ask where the other end of rails go at the opposite end of the circuit after the resistors? They are confusing because you did not give them any kind of reference.
@grif.t7852 Жыл бұрын
He defines Perfection .
@melodykamil5 жыл бұрын
Thank you! That was so helpful.
@joshuapiper81905 жыл бұрын
For parallel circuits with 2 resistors use R1xR2 divided by R1+R2 that’s a nicer equation. Only works for 2 resistors though.
@Awai_quotes2 жыл бұрын
Are you sure??bc it mught now
@sairemkhan69746 жыл бұрын
THANK YOU SO MUCH!!! Really grateful for the help!
@kevvonkev5 жыл бұрын
can you explain potential deviders in terms of current, the video was amazing!
@entertainingvariety88935 жыл бұрын
Thanks Sir ! You sound like Mike Thurston !!!! If you don't him search him up and compare his voice to yours
@MasterZack10005 жыл бұрын
In the last video you said that resistance increases with low temp in a thermistor and high light in a LDR (vice versa) but here you are saying the complete opposite?
@LeonLuckyV6 жыл бұрын
which a level exam board is this for? AQA i hope :/
@g-shockforlife17035 жыл бұрын
Aren't thermistors and LDR cancelled in the new AS cie syllabus?
@parttimeshorts85663 жыл бұрын
Pls do some questions on Thermistor, LDR , Variable resistor
@williamstephenjones38632 жыл бұрын
Brilliant video.
@giftayo60614 жыл бұрын
12:23 why would the resistance increase if it gets darker. Isn't goes down beacuse it should allow more current passing through to get brighter?
@randhawaheed27204 жыл бұрын
When it gets darker less light falls on it so tmp would DECREASE and since LDR has LESS free electrons and tmp is decreasing due to darkness, there would be less no of free electrons means resistance would INCREASE , in short as it gets darker for LDR, resistance would increase because of its semiconductor properties
@aditfahad24685 жыл бұрын
Thank you so much for this sir. I really can't thank you enough. This helps so much to understand what I don't get in classes. Keep doing this sir. Cheers
@bilalmuhammad15475 жыл бұрын
11:24 if it isn't changing its resistance then how it is possible for it to get a higher voltage then thermistor
@rkarox58585 жыл бұрын
bilal tanweer it’s not changing voltage of the fixed resistor, the ratio of the fixed resistor to the thermistor is altered so that the the thermistor’s resistance decreases. This means the fixed resistor will get more share of the voltage as the share of the voltage for the thermistor is decreased when it gets hotter
@bilalmuhammad15475 жыл бұрын
@@rkarox5858 thnkx
@motivationformuslims12143 жыл бұрын
Thanks for the great explanation,😊
@bramal-sharifi20365 жыл бұрын
We got given a resistor (75ohms) and a LDR in series. The lamp is at 10cm from the LDR and the reading on the voltmeter in parallel to the resistor is 2.4V. Battery is 6V Calculate the resistance of the LDR at this distance.H How do we do this?
@acerage67385 жыл бұрын
its not possible without knowing the energy the lamp emits. surely?
@yahusain29794 жыл бұрын
Hi. Can the potential divider be treated as a proportion porblem For eg: (12/6) *2 = 4 which is correct
@ScienceShorts4 жыл бұрын
No way! 😂
@meharpalbasi48016 жыл бұрын
For the fan example, could you also place it in series with the resistor and thermistor?
@James-zs3vm5 жыл бұрын
Maybe that would work, just a lot less efficiently, as it acts as it's own resistor and gets a lesser share of the voltage
@rayhanosman4274 жыл бұрын
What makes the lamp lights? the voltage or the current?!
@arshsood5446 жыл бұрын
excellent videos man... really really helpful. thank you so much
@ahmedsidiahmed21734 жыл бұрын
for the same resistance, 1 coulomb of charge would lose all of its energy by flowing through it, but if we have two identical it would only lose half of its energy?? why is that?
@turbothrottletrouble42174 жыл бұрын
Could you make ib specific videos? It would be very very helpful
@tarikadiwakar10355 жыл бұрын
Super helpful. Thank you
@mimishah92317 жыл бұрын
your videos are amazing 🤓🤓🤓🤓
@adampat64736 жыл бұрын
Thank you so much. Its so easy to understand the way you teach and summarise everything. Your a life saver!
@fahimal-huq68676 жыл бұрын
THANKS A LOT SIR.PLEASE KEEP UPLOADING VIDEOS.
@Nxck24405 жыл бұрын
For the circuit at 5:31 how can I work out the current in one of the parallel branches. Here's my attempt, R_tot = 10 + 1/(1/50 + 1/50) = 35 V_tot = I_tot * R_tot --> 12 = I_tot * 35 --> I_tot = 12/35 = 0.34 A Current is shared in parallel so current in one branch = 0.34 / 2 = 0.17 A If this is correct, what about if one of the 50 resistors is changed to 40. How to we divide up the current?
@mohamedrashed66435 жыл бұрын
i think you would do it the same way.
@Nxck24405 жыл бұрын
@@mohamedrashed6643 I think I understand better since watching this. For the example in my comment, I did R_tot = 10 + 1/(1/50 + 1/40) = 32.22 I_tot = V_tot / R_tot = 12/32.22 = 0.372 A p.d. across series resistor / V_tot = R/R_tot --> V/12 = 10/32.22 --> V = 3.72 p.d. across parallel part = 12 - 3.72 = 8.28 V Current across 40 resistor = p.d. across parallel part / Resistance = 8.28/40 = 0.21 A Current across 50 resistor = p.d. across parallel part / Resistance = 8.28/50 = 0.17 A Check: Total current should equal 0.37. 0.21 + 0.17 = 0.38 (close enough, error due to rounding). (This whole thing was just to check my own understanding, hopefully someone else finds it useful too!)
@mohamedrashed66435 жыл бұрын
How do you now my name?
@ethanmyles94485 жыл бұрын
@@mohamedrashed6643 WTF 😆 your name is your username.
@KAPOORVANSHIKA4 жыл бұрын
what is load in a battery?
@fatmafaizal077 жыл бұрын
hi ur videos help alot.. a humble request though.. could you upload videos of solving cie pastpaper question for the recent year..? 2016 2015 ? just paper 2?
@purplebubbles33244 жыл бұрын
Thank you this is a great video.
@billy50306 жыл бұрын
Brilliantly explained :)
@123qwe321ify7 жыл бұрын
Thanks for another great video
@ScienceShorts7 жыл бұрын
:)
@Oranje0142 жыл бұрын
What happens to the current as the resistance of the LDR or thermistor increases and how do you explain that
@M_B_T. Жыл бұрын
pretty sure it remains constant since its a series circuit
@mohasali5640 Жыл бұрын
@M_B_T Think carefully. V(total)=IR(total). We know that V will remain constant and that resistance has increased. Therefore, the current will decrease. Another way of thinking about it is that resistance is how difficult it is for current to flow, so increasing resistance will decrease the current as less charge travelling per second.
@Saad-rm8sd5 жыл бұрын
I hate ELECTRICITY but you make sense. AS EXAM in a month.
@cookiesandcream39535 жыл бұрын
SAMEEEEEEEEEEEE
@EsotericMedic5 жыл бұрын
Mines in 2 weeks and I'm just learning content now :( definitely failing
@Refract4045 жыл бұрын
We're all going to drop the grade boundaries together
@sunnykim21345 жыл бұрын
@@Refract404 yay
@yololula34955 жыл бұрын
@@Refract404 fingers crossed for unit 1
@MuhammadBilal-ns3tb2 жыл бұрын
thank you sir!!
@brandonadams34775 жыл бұрын
Is this for AQA ?
@Clark_Ken5 жыл бұрын
please help me understand whats happening at 10:50 onward
@muluekebedom6 жыл бұрын
Thanks that’s extremely helpful...
@mohammedsabri72266 жыл бұрын
Best of the best
@alexcook93736 жыл бұрын
What happens when there is 2 cells connected in parallel and you are asked to work out the current or voltage of one of the resistors in the circuit?