- published: 07 Nov 2016
- views: 299844
A tutorial on the basics of resistance, resistors, and Ohm's law which describes the relationship between voltage, current and resistance. I also show you how to build a simple resistor + LED circuit. 300 LEDs for $13: http://www.amazon.com/exec/obidos/ASIN/B00UWBJM0Q/afromods-20 500 resistors for $12: http://www.amazon.com/exec/obidos/ASIN/B008MH97I4/afromods-20 9V battery clips: http://www.amazon.com/exec/obidos/ASIN/B0188X6C2U/afromods-20 Adjustable power supply: http://www.amazon.com/exec/obidos/ASIN/B006W209ZG/afromods-20 Previous video on LEDs: http://www.youtube.com/watch?v=Yo6JI_bzUzo Next video on power and watts: http://www.youtube.com/watch?v=VSpB3HivkhY Website: http://www.afrotechmods.com Twitter: http://twitter.com/afrotechmods Facebook: http://bit.ly/2cMrAeu Ohmnilabs: htt...
A simple description of electric resistance, how the electricity is affected and how the resistance determines the heat output of electric heating elements
Here, I'll introduce how resistance is an electrical friction, in that it takes useful energy and converts it to heat. Resistivity is related to conductance and conductivity, too. See how judgmental I can be?
This interactive animation describes about the electrical resistance, factors affecting resistance of wire. It also describes about the length of the wire, thickness of the wire, material of the wire and the temperature of the wire. This is a product of Mexus Education Pvt. Ltd., an education innovations company based in Mumbai, India. http://www.mexuseducation.com, http://www.ikenstore.in For more videos visit https://www.youtube.com/ikenedu Follow us on twitter https://twitter.com/ikenedu Like us on https://www.facebook.com/ikenconnect
In this video we start looking at resistance, which we're going to explore in later videos. We look at what causes resistance and how to calculate it. Don't panic if maths is not your subject, I've included a triangle to help you.
We have explained here what is resistance and what is the basic theory behind it.
Georg Simon Ohm (16 March 1789 -- 6 July 1854) was a German physicist and mathematician. As a high school teacher, Ohm began his research with the new electrochemical cell, invented by Italian scientist Alessandro Volta. Using equipment of his own creation, Ohm found that there is a direct proportionality between the potential difference (voltage) applied across a conductor and the resultant electric current. This relationship is known as Ohm's law.
Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Physics Lesson :Electricity, Heating and chemical effect of current Topic: Electrical Resistance Resistance is an electrical quantity that measures how the device or material reduces the electric current flow through it. Theresistance is measured in units of ohms (Ω). If we make an analogy to water flow in pipes, the resistance is bigger when the pipe is thinner, so the water flow is decreased. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Mr. Andersen describes the relationship between voltage, current and resistance in an electric circuit. Ohm's Law is introduced through a circuit simulation. Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Let's try a simple but shocking experiment to try to wrap our heads around resistance, and what these little resistors do.
There's a saying that "it's not the volts that kills you, it's the amps" and while that's true in a way, you can't have amps without volts and skin resistance plays a big part too. This video explores all this, introducing voltage, current and resistance for those new to these things. Support RimstarOrg on Patreon https://www.patreon.com/user?u=680159 Subscribe for new videos every week http://www.youtube.com/user/rimstarorg?sub_confirmation=1 Go to the main channel page here https://youtube.com/rimstarorg Sources for the table on the effect of current: http://www.cdc.gov/niosh/docs/98-131/pdfs/98-131.pdf http://www.ohsbok.org.au/wp-content/uploads/2013/12/23-Hazard-Electricity.pdf?x71776 See also: Wimshurst machine - How to make using CDs http://youtu.be/puC6-UaT9Fk How Fast is an ...
Useful for CBSE, ICSE, NCERT & International Students Grade 07 Subject: SCIENCE Lesson : Electric Current and its Effects Topic: Electrical Resistance Resistance is an electrical quantity that measures how the device or material reduces the electric current flow through it. Theresistance is measured in units of ohms (Ω). If we make an analogy to water flow in pipes, the resistance is bigger when the pipe is thinner, so the water flow is decreased Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
So, electric current works like a river... kinda... Instead of flowing based on elevation, electric current works a little differently. But it's a good metaphor. In this episode of Crash Course Physics, Shini talks to us about electric current, voltaic cells, and how we get electric charge. 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: http://ww...
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the basic laws of resistance and resistivity of current, ohms, and the relationship of current and resistance. Next video in this series can be seen at: https://youtu.be/NqnyYNxl89g
Introduction to electricity, circuits, current, and resistance. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/physics/circuits-topic/circuits-resistance/v/circuits-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=physics Missed the previous lesson? https://www.khanacademy.org/science/physics/electric-charge-electric-force-and-voltage/electric-potential-voltage/v/electric-potential-at-a-point-in-space?utm_source=YT&utm_medium=Desc&utm_campaign=physics Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need...
This one exposes the myth that more resistance to current flow creates more heat in the electric heating element. This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. If you have suggestions or comments they are welcome. If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. Know your limits.
How do you analyze a circuit with resistors in series and parallel configurations? With the Break It Down-Build It Up Method! http://www.jesseleemason.com Music by Millish - Download our music (that's me on the acoustic guitar) at the iTunes Store: https://itunes.apple.com/us/album/millish/id128839547 0:00 INTRO: In this video we solve a combination series and parallel resistive circuit problem for the voltage across, current through and power dissipated by the circuit's resistors. 1:32 BREAK IT DOWN: We redraw the circuit in linear form to more easily identify series and parallel relationships. Then we combine resistors using equivalent resistance equations. After redrawing several times we end up with a single resistor representing the equivalent resistance of the circuit. We then ...
In the first fraction of a second electrons flowing through a material (i.e. electricity), they move unimpeded. By "holes" in a resisting material almost immediately begin to resist the flow. Researchers have captured the onset of electrical resistance. In this animation of their computational work, the electrons (blue) and atomic nuclei missing an electron -- also called "holes" (because electrons "drop" into them -- (red) show how electrical flow (green) is impeded. Video: Max-Born-Institute
Trying to explain resistance!
Covering resistance, how to calculate resistance, resistance in wires and resistors in series and parallel.
Whenever you plug something into an electrical socket, don't you wonder what's going on? Well you should, as it's pretty neat. What is electricity made of? How did we figure out how to harness this power? Let's take a look! Subscribe: http://bit.ly/ProfDaveSubscribe ProfessorDaveExplains@gmail.com http://patreon.com/ProfessorDaveExplains http://professordaveexplains.com http://facebook.com/ProfessorDaveExpl... http://twitter.com/DaveExplains Classical Physics Tutorials: http://bit.ly/ProfDavePhysics1 Modern Physics Tutorials: http://bit.ly/ProfDavePhysics2 Mathematics Tutorials: http://bit.ly/ProfDaveMaths General Chemistry Tutorials: http://bit.ly/ProfDaveGenChem Organic Chemistry Tutorials: http://bit.ly/ProfDaveOrgChem Biochemistry Tutorials: http://bit.ly/ProfDaveBiochem Biology Tuto...