- Видео 73
- Просмотров 399 707
duffydoesphysics
Добавлен 29 июн 2015
A channel with videos to help learn Physics.
The reflection of light
In this video, we introduce the reflection of light. We start by talking about the ray model of light, and then talk about the law of reflection. The video also covers four facts about images formed by plane mirrors, and briefly describes how to draw a ray diagram for a plane mirror.
Просмотров: 750
Видео
The electric field
Просмотров 4,1 тыс.7 лет назад
An introduction to the electric field, looking at how charged objects influence the space around them. The video gives the equation for the magnitude of the field from a point charge; discusses superposition, and shows examples of electric field vectors and electric field lines.
Coulombs law - introduction
Просмотров 3,7 тыс.7 лет назад
An introductory video about Coulomb's law, talking about the Coulomb's law equation for the force between two charged objects, as well as the direction of the force. There is also a comparison with the force of gravity.
Radioactivity
Просмотров 2,5 тыс.8 лет назад
An introduction to radioactivity, including looking at trends in the chart of the nuclides and how to use the exponential decay equation.
The nucleus
Просмотров 3 тыс.8 лет назад
An introduction to the nucleus, including its size, what it is made of, what keeps it together, and (using Einstein's famous equation), how to calculate the binding energy.
Wave-particle duality
Просмотров 3,9 тыс.8 лет назад
A brief introduction to the idea of wave-particle duality, including the de Broglie wavelength. We also review the evidence for the idea that things we normally think of as particles can exhibit wave behavior.
The photoelectric effect
Просмотров 7 тыс.8 лет назад
A brief introduction to the photoelectric effect, looking at the predictions of the wave model of the light and the particle model, and then going over the equation, and accompanying graph, that we often apply to understand it.
Thin-film interference
Просмотров 3,4 тыс.8 лет назад
An introduction to how we analyze thin-film interference, which, for instance, is responsible for the pretty colors of soap films. The video also includes a five-step method for analyzing a typical thin-film interference situation.
Diffraction
Просмотров 2,8 тыс.8 лет назад
A short video introducing diffraction, and also going briefly over some history of our understanding of the wave nature of light.
Interference of waves in two dimensions
Просмотров 4,3 тыс.8 лет назад
An introduction to a two-dimensional interference pattern of identical waves, such as that produced by connecting two speakers to the same single-frequency source. This is similar to
The human eye and the camera
Просмотров 9 тыс.8 лет назад
A short video that compares and contrasts a human eye with a basic camera.
Lenses and image formation
Просмотров 3 тыс.8 лет назад
An introduction to lenses, how they form images, and the equations and ray diagrams we draw to help understand the image formation process.
Refraction
Просмотров 2,4 тыс.8 лет назад
In this video, we introduce the index of refraction, look at a simple model of refraction (based on a marching band), and then go over Snell's law, the equation we use for doing calculations.
Polarized light
Просмотров 2,8 тыс.8 лет назад
An introduction to linearly polarized light, discussing how light becomes polarized, what happens to the intensity of the light when light passes through a polarizer, and also going into how you can test your sunglasses to see whether they are polarized.
Radiation pressure
Просмотров 7 тыс.8 лет назад
An introduction to some electromagnetic wave concepts, including intensity, the fact that EM waves carry momentum, and radiation pressure.
Interpreting magnetic flux vs. time graphs
Просмотров 17 тыс.8 лет назад
Interpreting magnetic flux vs. time graphs
Lenz's law, and a pictorial approach
Просмотров 3 тыс.8 лет назад
Lenz's law, and a pictorial approach
The force on a charge in a magnetic field
Просмотров 3,8 тыс.8 лет назад
The force on a charge in a magnetic field
Series-parallel combination circuits
Просмотров 116 тыс.8 лет назад
Series-parallel combination circuits
Resistors in parallel and in series
Просмотров 3,1 тыс.8 лет назад
Resistors in parallel and in series
This is a GREAT video breaking it down step by step really helped
tnx a lot!
very clear/short way to understand combination circuits. Thank you. I have my midterm this Saturday and looking at ur video def helped my understanding of how the circuit works more. Made 8 years ago but explained better than anything made today.
This is wonderfully explained!
You cant teach straight forward , you where confusing me seriously
Excellent genius 💚💚💚💚💚
Best video I recommend to anyone struggling with this topic Well done sir 👏👏👏
I watched so many videos but yours was the one that finally made sense. thanks!
Very good
Good
Cool thanks!
Wow this is the best explanation I had in my life about circuits. I hated this topic in school since I didn’t understand the concept and I struggled in exams. Now it sounds easy peasy with your elaborate explanation. Thanks!
THIS is a GREAT break down of a Series-Parallel Combination Circuit! - The tutorial was amazing supplemental learning and knowledge to what I have learned in class, and I thank you VERY much for this breakdown!
FINALLY FOUND A VIDEO TO EXPLAIN THIS SPECIFIC QUESTION. LIKED AND SUBSCRIBED AND COMMENT. Great video!
Very informative. Thanks!
Can anyone help me with some problems?
Detailed Electronics lectures in Urdu Language
ruclips.net/channel/UCnDe3mwT6hslEXWh1f5lGPQ
idk if any one will see this but if i take off R4 from the circuit is that still going to be a combination circuit??
KVPY Latest update by Rajeev Sir ruclips.net/video/0r53APXY6_s/видео.html
thanks you save my fucking life
You are the only person on RUclips that doesn't just repeat the same line, and shows the effect. Thank you. Subbed.
thank you
4:06 it looks to me like R1 and R23 are in series aswell, so why not combine those?
R1 and R23 are not in series as R1 will receive a portion of current from the line, and the other portion of current will continue onto R23. Hope this helped to visualize the current split.
😽😽😽😽
Thanks
What if the object is at rest? Its debroglie wavelength is infinite?
outstanding explanation!!!!!
May I know what happens if you take out one bulb will the others burn out as well?
This is slightly more confusing to me as compared to other videos I've watched on the same topic. Maybe if I would've started with this one it would be different. I'm struggling to grasp the concepts after everything's been broken down and starts to be expanded again. Maybe more practice is needed.
Only
keep it simple
THANK YOU SO MUUUUUUCCCCHHHHH
I didn't understand this equation
What is this
👍👍
Sir, is magnetic flux , phi a vector quantity ? If its not, how can we represent a negative value for magnetic flux as shown in the graph ?
ok
Very nice 👌👍😊
After searching for hours I find ONE fantastic circuits video... thank you sir for this
Thankyouu verymuch💖
Amazing explanation!
😤
👍👍
👍👍👍👍👍👍👍👍👏👏👏👏👏🤝
Thanks my dude.
Best discription of the break down of series/parallel circuits by far I've seen..thank you
this has helped a lot, thanks
Your tutorial helped me a ton with my looming DC theory tests coming up today. You beat my teachers explanation by far. One thing I felt like suggesting is you should buy a stencil so you can write along as you explain your slides!
THANKYOU FOR THIS. God bless you.
Amazing
Would you say polarity of the rod in uniformly varying magnetic field?