All of AQA Electricity Explained - A Level Physics Revision

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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[realchickennuggy]

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!

[AcryllixGD]

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

[apexheat]

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

[blandinus_]

watching in 1.25x speed for even quicker knowledge gains 😎

[keelangreally]

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

[apurvabhattacharyya]

Bookmark: 20:12 - Potential Dividers and EMF

[ahmed_]

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

[elyas._.alshameri]

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

[emilyknight]

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

[lucalav]

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

[Calliopa_]

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

[hakmedolarinde]

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

[riccardogiacalone]

your physics revision videos are like gold

[matthewbeasley]

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

[sashy]

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

[browhat]

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.

[franic]

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

[Mnge]

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

[anon_]

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

[yashsrivastava]

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.