Equations Book of Physics to Help You Solve EVERY Physics Problem: ✅ Contains many useful physics formulas. ✅ Understandable for everyone, because it contains no vectors and integrals. ✅ Formulas are colored and visualized. ✅ Perfect for high school and undergraduate physics students. Click on the following link to get the book: en.universaldenker.org/physics-equations-book Ohm's law describes how current I and voltage U are related. Here you will learn how to recognize Ohm's law as a graph and how to apply the corresponding URI formula. Three examples are discussed. Video content: -------------------------------------- 00:00 The 1st ingredient: Voltage 00:46 The 2nd ingredient: Electrical conductor 01:13 The 3rd ingredient: Electric current 02:43 Data points and Ohm's law as a graph 05:14 Ohmic conductors 06:06 Slope of the graph 07:07 Ohm's law as a formula 09:32 Example #1: Resistance unknown 09:57 Example #2: Voltage unknown 10:26 Example #3: Current unknown Difficulty of the video: --------------------------- 🧠🧠⚪⚪⚪ Join physics community: ---------------------------------------------- Discuss about physics, ask physics questions or leave feedback. 🔗 Discord: discord.com/invite/3Btr63fujg About the channel: ------------------------- Here you will find high quality free physics videos for beginners and advanced students. About the author: ------------------------- I am Alexander Fufaev, I am a physicist from Germany. I run the physics website universaldenker.org 🔗 More about me: en.universaldenker.org/avatars/fufaev Useful links: ----------------------------------- 🔗 Playlists: ruclips.net/user/universaldenker-physicsplaylists 🔗 Online formulary: en.universaldenker.org/formulas 🔗 Exercises with solutions: en.universaldenker.org/exercises 🔗 Free physics images: en.universaldenker.org/illustrations 🔗 Physics questions: en.universaldenker.org/questions #universaldenker You may reuse the videos for your own purposes. ❤
Thank you for this thoughtfully made video - I really like the pacing of your narration in combination with the clear and concise visuals! There was one part in this video I did not follow, however. At around 9:12 you rank several materials by their resistance: iron having the lowest, followed by copper, followed by aluminum. I was always told that copper is a much better conductor (less resistance) than iron or aluminum, and is only second to silver as far as typical metals are concerned. Perhaps you could help me understand where I'm going wrong, I would greatly appreciate it!
Sir Please make more videos in this channel. Your videos help me a lot. Señor Quiero más videos en este canal. Tus videos de física me ayudaron mucho. Gracias
Shouldn't the axis be reversed in the graph? Surely voltage is the independent variable and current is the dependent variable? I get it that you want R to be the slope of the graph and equal to "rise over run" ( U/I) but in reality we say "voltage drives current" not "current creates voltage", right? Although current is a function of voltage, I see how that would make the graph/slope determination more complex (1/R).
Amazing video, but I need to point out some things. When the voltage went up you drew more ions (denser) and represented it as higher current. But what I think is the right thing is that when the voltage gets higher it means that the electric field is bigger and so the force the ions experience and so the acceleration. Therefore, ions get faster so there are more ions travelling through for the time and therefore higher voltage. I don't thing drawing denser ions is the right thing. I maybe wrong correct me!
Nice Ohm's Law video. I use V for potential difference, but you use U. Is that notation common in Germany? I resently did a video about a non-Ohmic resistance video.
Thank you! Yes, in Germany U is used for voltage (probably not to confuse it with the unit V) Feel free to join the polls I'm doing in the community tab. There you can vote for the next video topic: ruclips.net/user/universaldenker-physicscommunity If you regularly visit my channel and like my videos, I would be happy about 1 x coffee ☕ per month: ruclips.net/user/universaldenker-physicsjoin
Equations Book of Physics to Help You Solve EVERY Physics Problem:
✅ Contains many useful physics formulas.
✅ Understandable for everyone, because it contains no vectors and integrals.
✅ Formulas are colored and visualized.
✅ Perfect for high school and undergraduate physics students.
Click on the following link to get the book:
en.universaldenker.org/physics-equations-book
Ohm's law describes how current I and voltage U are related. Here you will learn how to recognize Ohm's law as a graph and how to apply the corresponding URI formula. Three examples are discussed.
Video content:
--------------------------------------
00:00 The 1st ingredient: Voltage
00:46 The 2nd ingredient: Electrical conductor
01:13 The 3rd ingredient: Electric current
02:43 Data points and Ohm's law as a graph
05:14 Ohmic conductors
06:06 Slope of the graph
07:07 Ohm's law as a formula
09:32 Example #1: Resistance unknown
09:57 Example #2: Voltage unknown
10:26 Example #3: Current unknown
Difficulty of the video:
---------------------------
🧠🧠⚪⚪⚪
Join physics community:
----------------------------------------------
Discuss about physics, ask physics questions or leave feedback.
🔗 Discord: discord.com/invite/3Btr63fujg
About the channel:
-------------------------
Here you will find high quality free physics videos for beginners and advanced students.
About the author:
-------------------------
I am Alexander Fufaev, I am a physicist from Germany. I run the physics website universaldenker.org
🔗 More about me: en.universaldenker.org/avatars/fufaev
Useful links:
-----------------------------------
🔗 Playlists: ruclips.net/user/universaldenker-physicsplaylists
🔗 Online formulary: en.universaldenker.org/formulas
🔗 Exercises with solutions: en.universaldenker.org/exercises
🔗 Free physics images: en.universaldenker.org/illustrations
🔗 Physics questions: en.universaldenker.org/questions
#universaldenker
You may reuse the videos for your own purposes. ❤
Thank you for this thoughtfully made video - I really like the pacing of your narration in combination with the clear and concise visuals!
There was one part in this video I did not follow, however. At around 9:12 you rank several materials by their resistance: iron having the lowest, followed by copper, followed by aluminum.
I was always told that copper is a much better conductor (less resistance) than iron or aluminum, and is only second to silver as far as typical metals are concerned.
Perhaps you could help me understand where I'm going wrong, I would greatly appreciate it!
Sir Please make more videos in this channel. Your videos help me a lot.
Señor Quiero más videos en este canal.
Tus videos de física me ayudaron mucho.
Gracias
Sure, I will make more videos! Please don't forget to subscribe and share my channel. The more people support me, the more often I will upload videos
Shouldn't the axis be reversed in the graph? Surely voltage is the independent variable and current is the dependent variable? I get it that you want R to be the slope of the graph and equal to "rise over run" ( U/I) but in reality we say "voltage drives current" not "current creates voltage", right? Although current is a function of voltage, I see how that would make the graph/slope determination more complex (1/R).
Amazing video, but I need to point out some things. When the voltage went up you drew more ions (denser) and represented it as higher current. But what I think is the right thing is that when the voltage gets higher it means that the electric field is bigger and so the force the ions experience and so the acceleration. Therefore, ions get faster so there are more ions travelling through for the time and therefore higher voltage. I don't thing drawing denser ions is the right thing. I maybe wrong correct me!
Thanks!
You're welcome, Wisdom Happy! 🙂
Waiting for more videos
Thanks, I will try to be a little more active on the english channel! =)
Nice Ohm's Law video. I use V for potential difference, but you use U. Is that notation common in Germany? I resently did a video about a non-Ohmic resistance video.
Thank you!
Yes, in Germany U is used for voltage (probably not to confuse it with the unit V)
Feel free to join the polls I'm doing in the community tab. There you can vote for the next video topic:
ruclips.net/user/universaldenker-physicscommunity
If you regularly visit my channel and like my videos, I would be happy about 1 x coffee ☕ per month:
ruclips.net/user/universaldenker-physicsjoin