Magnetic field in a solenoid

[g3rrar1]

solenoids are awesome. they are actually electromagnets, wich are used in alot of things

[aweklennon]

how to do this??/ what kind of software we used? can some1 tell me..

[PocaForLive]

The B always points to the nord

[Sposchy]

Thank you!!! This animation explained to me what an entire textbook worth of notes couldn't!

[mahad420]

love u mannnnnn u solved 1 0f my major problem and misconception

[YOTTR]

where is north?

[PelletierPhysics]

@YOTTR Magnetic field (green arrow) goes from north to south.

[DasdeFREE]

@PelletierPhysics isn't it from south to north ?

[unpflash]

wow...it spins...

[TheWTFers]

hey quick question, what material is the rod inside the solenoid made of?

[TheTempestSpark]

Looks good!

[JustBeConfident]

This is the example why we need to head towards more scope of valuable future animation world... cheers !!!

[socalmusic09]

Absolutely - Education needs to be revamped to meet the needs of our digital age. There is so much information that can be taught more efficiently through the video game and movie-like mediums our generation is used to. This one 8 second graphic can replace several pages of text in a standard physics book on solenoids, current, and magnetic field -

[d3str0i3r]

@socalmusic09 YOU ARE NOT TURNING MY VIDEOGAMES EDUCATIONAL, educational games have never been able to hold my attention, but yeah the educational system is behind the times

[sgtjasonshrout]

I know solenoids are primarily used to produce a mechanical force, but how could it be turned around to produce electricity using mechanical force?

[mortenrobinson]

@sgtjasonshrout: Well... just as electricity or current somehow creates a magnetic field, it works the other way round aswel so that a moving permanent magnet will make charge move in the conductor (current). It's a changing magnetic field that makes the current flow. a LOT of things are created solemnly by taking advantages of these principals of nature (and a few others), f.ex speakers, microphones, generators, electric motors, electric guitars, transformers etc, etc... the list is long...

[Goldstarelite]

@mortenrobinson it would pass to the next proton with less resistance therefore it would look something like this: I=E/R 120vac/13ohms= 9.23A and that would give you more magnetism because the faster the electrons will move from - + with ease you will then have more magnetism.

[dinkarilu]

good job

[Arianive]

What would happen if you bent and wound the solenoid, not simply into a toroid, but into a long, long, long repeating spiral - long enough that it became a tube of itself. You would basically have a long spiral of flux tube - a helix. What would the conditions be inside/outside its center core (air or otherwise)? Then of course you could wind that tube as well into another helix...

[nohandsma]

wow. thats goingt to keep me up.

[fodlav]

good job man

i will remember it

[frostwow]

thanks man!

[mykol13v]

Holy Cow, Electrons Flow?

I hope they don't land up on my curtains or loose on the valance!

[hthglllkhgjg]

is that the current in the direction of proton or electron?

[PelletierPhysics]

The animation shows the conventional current in the direction of positive charges; it's not the flow of electrons.

[beechcraft12]

@PelletierPhysics

so its protons?

[PelletierPhysics]

@beechcraft12 Protons don't move but if they did, they would move in the direction of conventional current.

[bobflyer]

@beechcraft12 all the math is based on conventional current which is in the opposite direction of the electron flow. When they developed the math, they believed that current flowed from positive to negative terminal which is conventional current, but in reality, it flows from negative to positive terminal.