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 Learn what capacitive reactance is and how to determine it for a capacitor in an AC circuit. Video content: -------------------------------------- 00:00 What is the capacitive reactance? 00:38 Calculate capacitive reactance 02:01 Example 02:22 RMS current through the capacitor 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! 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
@0:57 i don't think that is correct, the minus sign does not mean that reactance is lagging behind the voltage, that statement would be correct only if you had added (-i) before the Xc the imaginary number.
Can I ask why voltage and capacitance are inversely proportional and why does decreasing voltage increase capacitance (I know the dielectric will reduce electric field and hence reduce voltage). Would help to derive the formula C=Q/V and why it works.
Hey thank you for your question! Mmmm, you didn't interpret the formula quite right. The voltage U is NOT inversely proportional to the capacitance C. By that I mean, if you decrease the voltage, then the capacitance does NOT increase, because capacitance C is an intrinsic property of the capacitor. It is a CONSTANT. You need to think of the formula more like this: Q = C*U. So charge Q is proportional to voltage U, where the constant of proportionality is C. I will write an article about this on universaldenker.org and explain a bit better. If you have any further questions, feel free to join my Discord channel: discord.com/invite/3Btr63fujg
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
Learn what capacitive reactance is and how to determine it for a capacitor in an AC circuit.
Video content:
--------------------------------------
00:00 What is the capacitive reactance?
00:38 Calculate capacitive reactance
02:01 Example
02:22 RMS current through the capacitor
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. ❤
Awesome video! Thank you!
Thank you!
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
great video, but you should include a reference to a derivation of effective voltage and effective current somewhere
@0:57 i don't think that is correct, the minus sign does not mean that reactance is lagging behind the voltage, that statement would be correct only if you had added (-i) before the Xc the imaginary number.
Video için teşekkür ederim. Xc ve Z ile ESR arasındaki fark nedir? Bunun ile ilgili videonuz var mı?
Can I ask why voltage and capacitance are inversely proportional and why does decreasing voltage increase capacitance (I know the dielectric will reduce electric field and hence reduce voltage). Would help to derive the formula C=Q/V and why it works.
Hey thank you for your question! Mmmm, you didn't interpret the formula quite right. The voltage U is NOT inversely proportional to the capacitance C. By that I mean, if you decrease the voltage, then the capacitance does NOT increase, because capacitance C is an intrinsic property of the capacitor. It is a CONSTANT. You need to think of the formula more like this: Q = C*U. So charge Q is proportional to voltage U, where the constant of proportionality is C. I will write an article about this on universaldenker.org and explain a bit better.
If you have any further questions, feel free to join my Discord channel:
discord.com/invite/3Btr63fujg
Video için çok teşekkür ederim. Xc ile Esr arasındaki fark nedir?
Esr?