Vacuum permittivity, commonly denoted ε0 (pronounced "epsilon nought" or "epsilon zero"), is the value of the absolute dielectric permittivity of classical vacuum. It may also be referred to as the permittivity of free space, the electric constant, or the distributed capacitance of the vacuum. It is an ideal (baseline) physical constant. Its CODATA value is: ε0 = 8.8541878128(13)×10−12 F⋅m−1 (farads per meter), with a relative uncertainty of 1.5×10−10. It is a measure of how dense of an electric field is "permitted" to form in response to electric charges, and relates the units for electric charge to such as length and force. For example, the force between two separated electric charges with spherical symmetry (in the vacuum of classical electromagnetism) is given by Coulomb's law: Here, q1 and q2 are the charges, r is the distance between their centres, and the value of the constant fraction (known as the Coulomb constant, ke) is approximately 9 × 109 N⋅m2⋅C−2. Likewise, ε0 appears in Maxwell's equations, which describe the properties of electric and magnetic fields and electromagnetic radiation, and relate them to their sources. In electrical engineering, ε0 itself is used as a unit to quantify the permittivity of various dielectric materials. (Wikipedia).
This video will show how to make a vacuum pump, a device that can be used to suck the air out of sealed environments. This is the same pump I use to operate my vacuum cannon seen here: http://youtu.be/CVL99yIB3NQ A clear vacuum chamber such as the one seen in the video can be obtained by
From playlist Practical Projects & Skills
Steam Vacuum - Making/How it Works
A steam vacuum is a vacuum that's create by making steam in a container (I use a microwave and a kettle) and then rapidly cooling it back to water (condensing it), leaving behind a vacuum. This vacuum is a low pressure are that dramatically sucks in more water and, if in a flexible contain
From playlist Science Projects
To learn how I made the vacuum pump used to operate this cannon, take a look at this video: http://youtu.be/UkPLu6mgdWA A vacuum cannon is an interesting physics demonstration that shows how much atmospheric pressure there is at the earths surface, though we do not feel it because our bod
From playlist Science & Experiments
More on Vacuums - Sixty Symbols
We let the particle physics people give their version of what a vacuum is like. More physics at http://www.sixtysymbols.com/ Tony Padilla and Ed Copeland.
From playlist Ed Copeland - Sixty Symbols
How a Crookes radiometer works
A Crookes radiometer is driven by a thermal gas effect, and not "light pressure" as often thought. I demonstrate the radiometer in a vacuum chamber and explain its optimal running pressure. http://en.wikipedia.org/wiki/Crookes_radiometer
From playlist Optics
How Does this Vacuum Create Hurricane Force Winds?
This vacuum's motor produces a constant 100 MPH stream of air. How does it keep from overheating? MACHINES: HOW THEY WORK http://www.sciencechannel.com/tv-shows/machines-how-they-work/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Facebook: https://www.faceb
From playlist Machines: How They Work
7 Amazing Physics Tricks with Vacuum pump That You Must see!!!
Physics (la physique) demonstration experiment
From playlist physics
#Physics #Mechanics #Engineering #NicholasGKK #Shorts
From playlist General Mechanics
We derive the equation for the capacitance of a parallel plate capacitor. Learn how adding a dielectric material to a capacitor affects its capacitance and discover the definition of the dielectric constant. Want Lecture Notes? http://www.flippingphysics.com/parallel-plate-capacitors.html
From playlist All of AP Physics C: Electricity & Magnetism!
Capacitors - Review for AP Physics C: Electricity and Magnetism
AP Physics C: Electricity and Magnetism review of Capacitors including: demonstrating what capacitors are, defining capacitance, discharging a capacitor, deriving the capacitance of a parallel plate capacitor, defining dielectrics, defining electric permittivity, defining the dielectric co
From playlist AP Physics C: Electricity & Magnetism Review
Mod-07 Lec-17 Electrical Phenomenon in Insulators
Advanced ceramics for strategic applications by Prof. H.S. Maiti,Department of Metallurgy and Material Science,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Advanced Ceramics for Strategic Applications | CosmoLearning.org Materials Science
019 - Electric Permittivity In this video Paul Andersen explains how electric permittivity of a material resists the formation of electric fields. Capacitors store energy be preventing the formation of electric fields in dielectric material. The electric permittivity of free space is co
From playlist AP Physics 2 Videos
JEE Main Physics E & M #21 Speed of an E & M Wave in a Dielectric Medium
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 An electromagnetic wave of frequency 3GHz enters a dielectric medium of relative electric permittivity 2.25 from vacuum. The waveleng
From playlist JEE (MAIN) PHYSICS E&M ELECTRICITY AND MAGNETISM
L3 NCEA Physics Lesson on capacitors and capacitance
From playlist Level 3 NCEA Physics
Schottky Diode Part 2 - Depletion Region and Capacitance
https://www.patreon.com/edmundsj If you want to see more of these videos, or would like to say thanks for this one, the best way you can do that is by becoming a patron - see the link above :). And a huge thank you to all my existing patrons - you make these videos possible. In this video
From playlist Electronics I: Semiconductor Physics and Devices
The Biggest Clue that the Speed of Light Is Constant | Relativity and Electromagnetism (Parth G)
The Special and General Theories of Relativity both work on the assumption that the speed of light is constant for all (inertial) observers. But why? Hey everyone, let's talk about an important axiom in Einstein's theories of relativity: the speed of light being constant. This assumption
From playlist Relativity by Parth G
Astronomy - Ch. 31: What is Space Made of? (7 of 15) Analogy of Waves on a String
Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will compare the Analog of Waves on a String to What is Space Made of? Next video in this series can be seen at: https://youtu.be
From playlist ASTRONOMY 31 WHAT IS SPACE MADE OF?
AWESOME SUPERCONDUCTOR LEVITATION!!!
A quantum levitator it's a circular track of magnets above which a razor-thin disc magically levitates, seeming to defy the laws of physics. The key to the levitator is the disc, which is made of superconducting material sandwiched between layers of gold and sapphire crystal. A piece of fo
From playlist THERMODYNAMICS
Maxwell’s Equations Part 1: Gauss’s Law for the Electric Field
It's time to go a little deeper with our understanding of classical physics! From the very introductory conceptual tutorials on electricity and magnetism, we need to apply some more rigor and use advanced math that will help us really understand these topics. To start we will examine Maxwe
From playlist Classical Physics
AWESOME DEMONSTRATION FORCE OF ATMOSPHERIC PRESSURE!!!
In this video i show the force of atmospheric air in a syringe with coloured water under specific conditions in vacuum chamber! During the experiment i explain the phenomena. Amazing demonstration with amazing results!
From playlist PRESSURE