All of AQA Electricity Explained - A Level Physics Revision

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All of AQA Electricity explained for your A Level Physics revision. This video is revision of all the material you will be taught in your first year of A Levels. It revises some of the GCSE content you will be familiar with, including current, potential difference and resistance. Component characteristics are covered with the IV graphs for resistors (ohmic conductors), filament bulbs and diodes. Resistivity is introduced and the way that some semi-conductors decrease their resistance with temperature and some materials even have zero resistance at really, really low temperatures.
Circuit rules are covered that include the conservation of charge and energy, the resistance of resistor combinations, potential dividers and internal resistance and emf. A complete summary of the topic. Don't forget of course that there are hundreds of in depth videos on my website that explain everything in this video in even greater detail.
Thanks for watching,
Lewis
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Опубликовано:

10 мар 2020

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Комментарии : 166

@realchickennuggy 3 года назад

I'm not even kidding. I used to get 60's and 70's for school exams and after watching your videos I started to understand physics concepts at an unbelievable scale. I managed to get an A* in the final examination! Thank you so much! Please keep uploading videos to help future students!

@PhysicsOnline 3 года назад

Great job!

@frieda1471 2 года назад

how else did you revise? I’m in year thirteen and really struggling :/

@deetha1840 2 года назад

@@frieda1471 I find that teaching is one of the best ways of learning! Teaching your parents, friends or even a stuffed animal! It enables you to word things in a way that is easily understandable and therefore benefit you. You will be able to remember content so much easier as your brain will really be processing the information:)

@blandinus_8683 3 года назад

watching in 1.25x speed for even quicker knowledge gains 😎

@hisahil7884 3 года назад

yes

@salehazubairi4558 3 года назад

2x 😳

@dragonghast5856 3 года назад

when you have an exam in 16 hours and 17 hours worth of revision to do

@georgephillips8265 3 года назад

that's weak I'm at 2x

@simpilotadamt1012 3 года назад

@@georgephillips8265 aahhh I see ur a 2x noob *laughs in 3x*

@AcryllixGD 2 года назад

0:00 introduction 0:26 - GCSE Revision, I-V Graphs, Ohm's Law, V=IR and Proportionality etc... 8:17 - Resistivity 9:32 - Resistance and Temperature Proportionality 10:36 - Semiconductors and Thermistors 11:47 - Superconductors and Critical Temperature 12:30 - Summary of Topics so far 12:41 - Kirchoff's First Law 13:23 - Electromotive Force 14:33 - Current and Potential Difference in Series and Parallel Circuits 16:45 - Calculating Resistance across Parallel and Series Circuits 18:16 - Power 20:05 - Potential Dividers 22:25 - Internal Resistance and Its relation with the Electromotive Force

@leroy4335 2 месяца назад

thank you

@apexheat6553 4 года назад

i absolutely hated electricity but now after watching this, I feel confident in answering some question. ur a big help and I cant thank u enough

@PhysicsOnline 4 года назад

Great to hear!

@imi.b7391 4 года назад

Omg same, legit did't understand a word now understand it a bit better. Thank you

@flaff8135 3 года назад

love the profile pic

@keelangreally7048 3 года назад

I have an electricity test tomorrow and lord knows I needed this video. Honestly can’t thank you enough

@browhat6935 2 года назад

These all of topic A Level Physics vids are amazing, they always link everything nicely to truly understand the topic at hand. Thanks for these videos.

@Calliopa_22 2 года назад

Thanks for the immense help that all of your videos provide! Got my exam in less than 24 hours and you’ve helped a lot

@lucalav7 3 года назад

Thank you for making this video! it is so useful to have all the topic explained in one video, I’m always worried I’m going to forget to revise something

@apurvabhattacharyya3236 3 года назад

Bookmark: 20:12 - Potential Dividers and EMF

@browhat6935 2 года назад

I needed this lmao thanks

@ahmed_4294 2 года назад

When I started revising electricity, it seemed so much more complicated than when I watched this vid. Thank you for simplifying it for us!!

@gawayne1374 2 года назад

Thank you for sharing! This is such a great resource for teachers and tutors too =)

@matthewbeasley2336 2 года назад

Seriously going to help me with my physics test on Wednesday, thanks for making this!

@riccardogiacalone5651 4 года назад

your physics revision videos are like gold

@emilyknight7816 3 года назад

Lol let me not fail in my test tomorrow🙏😭✨

@PhysicsOnline 3 года назад

Good luck!

@emilyknight7816 3 года назад

@@PhysicsOnline thank you :))

@georgekonstantinou9725 3 года назад

Me right now watching this the night before my test

@Name-bc6er 3 года назад

me watching the hour before my test

@__steven9452 3 года назад

me watching during my test

@elyas._.alshameri Год назад

Bro. Fr these video gonna save me. If I don't understand the lecture in College I would watch your videos. Man you are a life saver

@joshuaruddle8995 2 года назад

This is so incredible. Thankyou so so much. You’re a legend

@aribfarhat6251 2 года назад

These are really helpful! I wish you made exam revision videos for second year of A levels as well.

@M1nge04 3 года назад

i have my mock tomrrow this has really helped me a lot THANK YOUUUU

@kaamilm7955 Год назад

this vid was smashing. you went on a mad one chow. much luv from B8

@abhijit_4559 4 года назад

it was very helpful to recap all the electricity content. Thanks

@imrajrabbani8352 2 года назад

Thank you very much.Got every point what you said.Really helped me

@phoenixgamerz7192 2 года назад

Thank you sooo much.This will help me a lot.

@thomasgibson6162 3 года назад

Really helpful, thank you!!

@iconichisoka7642 3 года назад

lol i needed this for my physics test tomorrow, thank you 👍🏾

@blobfish5730 2 года назад

Thank you so much for this!

@katiat5297 3 года назад

Thank you so much, this is acc amazing for revision :)

@shadowrift8430 7 месяцев назад

My goodness do I have a negative opinion of this topic

@franic680 2 года назад

Thanks - this is probably my weakest area for Thursday but you explained it well

@sashy2323 4 года назад

Thank you so much! I have my AP2 tomorrow so this is really useful!

@mrk2938 3 года назад

erm, exams were cancelled

@hakmedolarinde8183 Год назад

i have my physics paper 1 exam in a couple of days and this has really helped. electricity has always been my weakest side and i felt kind of lost but after watching this i feel like i can finally pick up the pace in revising this area. thank you so much

@qal4real372 2 месяца назад

im assuming the paper did not go well?😂

@benjamintery7847 3 года назад

exam tomorrow, this is so useful, thank you so much!

@damilolababalola5297 3 года назад

THIS WAS SOOOO HELPFUL.

@annabelleita9684 Год назад

I have been watching your videos throughout the entirety of my A-level Physics course and you have helped me with my understanding so much. Now I'm a week away from Paper 1 and I'm rewatching your videos, whilst going through the CGP guide, because they are so good. Thank you so much for all your hard work to help us out! :)

@PhysicsOnline Год назад

Amazing, hope they continue to be helpful for you in these last few weeks.

@personmcperson222 2 года назад

just realised this was posted about ten days before it was announced that exams were cancelled lol. using this now for revision :0 very useful

@hematvali9568 3 года назад

You have earned my respect

@maruahmad2003 4 года назад

Thank you very much !

@nerys2263 Год назад

THANK YOU SO MUCH FOR THIS

@cyrusfn7625 3 года назад

I Have my Mocks tomorow thx for saving my life

@alyasa7617 3 года назад

Don’t even study physics, just searched “people having breakdowns over a levels” (as it makes me feel better) then this came up

@anikapalacios1817 3 года назад

I AM LOVIN’ THIS😍😍😍🤩🤩🤩

@abdurrahmanlabib916 4 года назад

Doing a vid for CIE would be great!!!

@loanetchoudi2374 3 года назад

end of topic test tmr i am very thankful

@carlosraya6881 3 года назад

Legend says he keeps liking comments even after 10 months

@MohammedAhmed-pb9xm 2 года назад

Hi Sir, Have you got a revision video for aqa particle physics? Thanks for your hard work

@PobitroMon 6 месяцев назад

Man we owe so so much to uu 😭😭🙏❤

@isitfair2482 3 года назад

Good job sir.

@dobby9852 10 месяцев назад

you are a literal god

@jamjar342 3 года назад

Thanks 🙏

@harrywilliamson5715 3 года назад

Please do a video on fields and thermal recap

@Surfboarder4 2 года назад

thanks!

@meliasummers6730 3 года назад

Could you do a video on battery chargers where there is one battery charger and cell in series with opposite terminals connected ? These question always come up .

@thiccteletubby1234 3 года назад

cant thank u enough bro

@phantongaming8440 2 года назад

I do AQA physics and we learnt Kirchhoff's laws and was told it would be in the exams

@funkychunky7320 4 года назад

Thanks for the video, my mock is today!

@zorossenseofdirection2698 4 года назад

Bruh same kinda, I have a physics test on electricity today I havent studied anything of it cause ive been struggling to keep up with work. I literally taught myself all electricity yesterday night and wrote up all my notes and here i am trying ot cram everything half an hour before my test

@ais-dq3dm 3 года назад

@@zorossenseofdirection2698 what did u get on the test did u pass?

@yashsrivastava1108 2 года назад

Interesting that despite being an ISC student, I can study from an A level tutor, and still be able to understand the topic with clarity. Nice mind map by the way.

@yashsrivastava1108 2 года назад

Really an underrated channel for physics

@PhysicsOnline 2 года назад

Thank you

@rhejdneb3605 2 года назад

thanks chief

@sabavaezshooshatri2441 4 года назад

Thank you so much for the effort you put into these videos. It would be super helpful if you did one for OCR A

@PhysicsOnline 4 года назад

Thank you, that’s my plan.

@natural5546 4 года назад

@Tjk_ SkaZeRe.m.f stands for electrotmotive force. It is essentially the total electrical energy supplied by the battery sent around the circuit. Units are V. The weird looking E represents e.m.f in the equation and is also the Greek letter known as epsilom. Hope I was able to answer your question.

@huzaifagujjar2762 3 года назад

Great video sir 😊 insha'Allah I'll do better in tomorrow's test

@albertottoman4896 2 года назад

I had no hope but when I watched this .....i felt I should not give up ..thanks

@jesseh3943 4 месяца назад

Sir, for the last part about resistors and cells in parallel, how does the current and resistance add up and say we connected a lamp in parallel to the circuit drawn, what the current and resistance be.

@Armwrestlingphilosopher 3 года назад

It’s the Uplearn guy😎

@PhysicsOnline 3 года назад

Or Up Learn use the Physics Online guy!

@vinitamratlal3638 3 года назад

22:00

@Ben-us2ve 4 года назад

This is super helpful, please could you do OCR too

@PhysicsOnline 4 года назад

Will do

@tx865 4 года назад

5:00

@demdino2706 3 года назад

Me watching this 1 hour before my test😝

@amadif1793 2 года назад

Anyone else watching this the day before their electricity test?

@eddie6584 3 года назад

Just gonna add something, for the I-V characteristic graph for the diode, the line won’t starting going up from the origin because diodes have what’s called a threshold voltage meaning a current will only start flowing once the threshold voltage has been reached, for the diode shown in the video, this would be around 0.8 volts.

@eddie6584 3 года назад

I’m only doing GCSE’s haha but I’m just a nerd, I don’t know if you actually need to know this for the A-Level but I thought I’d mention it anyway 👍

@jadea2594 3 года назад

Hello, how do you derive the length of a wire from the number of turns ( and diameter)

@PhysicsOnline 3 года назад

No. of turns x circumference

@randhawaheed2720 3 года назад

I'm really struggling with a question it would be an awesome help if you could explain it please? it's unit 2 of physics AS Q5 January 2011 code 6PH02/01

@chandrakantr2299 2 года назад

VIDEO is worth it

@chandrakantr2299 2 года назад

hello sir, do you have any video for superposition?

@kingvinito0668 Год назад

this vid was so helpful ty :)) got my mocks in a few days and im finished cuz i keep playing fortnite

@adigraphics1565 Год назад

what is AQA, I am a edexcel IAL student of AS(uni1, 2,3) i can use ur videos right?

@KAPOORVANSHIKA 4 года назад

what is load of battery?

@belleprentice9272 3 года назад

What pens do you use?

@murdermelon6103 3 года назад

Is there a edexcel one ???

@nahi.03 3 года назад

will there be this sort of video for year 2 content and the options?

@PhysicsOnline 3 года назад

In time there will be

@cx11 3 года назад

Does the symbol you wrote at 21:11 mean anything because whilst its not the right one it looks familiar

@PhysicsOnline 3 года назад

It’s similar to an LED, but that would have the arrows pointing away from it.

@nevanmasterson46 3 года назад

22:06 can someone explain to me why there's no resistance when the pointer is at the left end? surely if it's at the other end the circuit bypasses the resistor and effectively avoids the resistance? i'm not correcting or anything, i'm sure it's right., but i just don't understand why 😔

@samdicks9146 3 года назад

The resistance is proportional to the length : R = (resistivity x length)/area . Therefore when l = 0, r = 0, such as there being no resistor. Therefore as V = IR, there is no voltage.

@5trawb3ry_m1lk2 2 года назад

Why did I watch this 😭 I don't take physics a level I haven't done my gcse yet and I understood this😩😩

@rimshaasif689 4 года назад

The blocks in grey at 11:29 are electrons (charges that are liberated)?

@PhysicsOnline 4 года назад

That’s right

@rimshaasif689 4 года назад

Thank you!

@username2828 4 года назад

Hi, is everything is your electricity playlist everything we need to know for our exams?

@PhysicsOnline 4 года назад

Yes

@clahrenssgramula4374 3 года назад

Will this be useful for me if I do As physics but from cie board?

@PhysicsOnline 3 года назад

Yes it will

@dndjxnskdbajd4561 3 года назад

legend

@PhysicsOnline 3 года назад

It has been said!

@EDWARD-nu9gy 3 года назад

Do you know if you get all the equations shown in this video in the exam?

@hbullough5503 3 года назад

You get most of them but there are a few you need to know. filestore.aqa.org.uk/resources/physics/AQA-7408-SDB.PDF

@Rahul-ef2ou 3 года назад

Myy guyyyyy

@ninjadog5800 2 года назад

Hi I just wanted to ask if this is for year 1, or year 1 and 2

@PhysicsOnline 2 года назад

This is usually covered in Year 1.

@Reckonart 2 года назад

You sound like James Vowles

@Bulldog01234 Год назад

Would this be good for CIE even tho it's AQA?

@fuadsalah8286 9 месяцев назад

check the spec and see if it has the same content

@pedrumsalimi3466 3 года назад

Hey! your wonderful too, (00:03)

@abdubguracha 3 года назад

First Physics Assessment in 7hrs 😭😭

@lv-cxs 2 года назад

im definitely failing

@kallamsamad6736 3 года назад

You missed out small things that are quite important such as the value a diode will produce current but overall it's good. I wouldn't rely on this video on it's own though.

@cuteprincess5828 3 года назад

Nice pen

@ibby217 3 года назад

think i found a legend

@akihayakawa788 2 года назад

12:43 personal timestamp

@Alex324 Год назад

Be my teacher.

@PhysicsOnline Год назад

I'm your online teacher!

@ronweasel2724 2 года назад

This is for 9702 right?

@PhysicsOnline 2 года назад

Yep

@willeze9833 4 года назад

Can you do an ocr A one please

@PhysicsOnline 4 года назад

Will do

@willeze9833 4 года назад

Physics Online thank you so much your videos are so helpful keep up the good work :)

@ciandunne1761 3 года назад

26:47 didnt age well haha

@edded2487 3 года назад

Electricity ∝ eternal pain - and additionally, Electricity = to 1/death (with the assumption that anything divided by death is negligible) ∴ Electricity = eternal pain and death but nice vid either way