- published: 29 Sep 2016
- views: 73933
Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative. Like charges repel and unlike attract. An object is negatively charged if it has an excess of electrons, and is otherwise positively charged or uncharged. The SI derived unit of electric charge is the coulomb (C). In electrical engineering, however, it is also common to use the ampere-hour (Ah), and in chemistry it is common to use the elementary charge (e) as a unit. The symbol Q often denotes charge. Early knowledge of how charged substances interact is now called classical electrodynamics, and is still accurate for problems that don't require consideration of quantum effects.
The electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields. The interaction between a moving charge and an electromagnetic field is the source of the electromagnetic force, which is one of the four fundamental forces (See also: magnetic field).
Moving on to our unit on the Physics of Electricity, it's time to talk about charge. What is charge? Is there a positive and negative charge? What do those things mean? In this episode, Shini talks about electrostatic forces, electrical charge, Coulomb's law, and the force between charged particles. Get your own Crash Course Physics mug from DFTBA: http://store.dftba.com/products/crash... The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list... -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: ...
006 - Electric Charge In this video Paul Andersen introduces electric charge. Electric charge has been studies by humans and was generalized by scientists such as Benjamin Franklin. The amount of charge in a system is conserved but individual charges can move through a conductor as current. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: Dilmen, Nevit. English: A Lemon Battery Is a Device Used in Experiments Proposed in Many Science Textbooks around the World, First Discovered by Josh Balestri. It Is Made by Inserting Two Different M...
An educational segment about electrons, protons, electrostatics, and the Coulomb. Helpful articles: http://www.matrix.edu.au/6-common-mistakes-hsc-physics-students-make-in-exams/ http://www.matrix.edu.au/how-to-achieve-99-95-atar/ http://www.matrix.edu.au/chemical-reactions-year-12-chemistry-students-must-k... http://www.matrix.edu.au/all-about-atar-scaling/
Introduction to Charge and Coulomb's Law (video from May 2008 that I forgot to upload) More free lessons at: http://www.khanacademy.org/video?v=NXMgvrS8Gr8
What holds our world together? Electric Charges (Historical), Polarization, Electric Force, Coulomb's Law, Van de Graaff, Great Demos Assignments Lecture 1, 2, 3, 4 and 5: http://freepdfhosting.com/2cb4aad955.pdf Solutions Lecture 1, 2, 3, 4 and 5: http://freepdfhosting.com/75b96693f2.pdf
This shows some things that one can do with electrons.
Electricity and magnetism. Charge, atoms, Coulomb force, vector, dipole, electric field.
In this video, I will demonstrate some realistic experiments that many children may have done as a game, but they have never asked the reason. First, I will show three simple experiments that they can easily do at home: 1- Rub two balloons on my hair. When I close them, they repel each other 2- Rub a balloon on my hair. Then roll a soda can toward the balloon. 3- This time, I will rub a balloon through my hair, and then try to bend a stream of water using it to different directions Now that they are excited, I will start explaining the reason. I will give a simple introduction about the positive and negative charges. Then I will draw how the charges are placed on the balloon, and how they redistribute the charges on nearby objects.
This is a video on electric charge and charge carriers.
Discussion With CPI Narayana On Electricity Charges
Electricity and magnetism. Charge, atoms, Coulomb force, vector, dipole, electric field.
Electric charges and their response to external electric fields; the electric dipole and its response to external electric fields.