Law of Laplace

A.k.a. Laplace's Law.

This is a demonstration of Law of Laplace.
What it shows is that a conducting material with electricity going though it is surrounded by a magnetic field and if placed in a magnetic field it'll result in a moving force.

It's basically the same principle as those homo-polar motors seen here on YouTube which many people believes are fake. They're not fake but just a variation of the basic principle demonstrated here. Instead circular so it goes round and therefore could be called a motor (but efficiency is very low).

Without this important discovery not many of those tons of devices we surround us with today would have been realizable.

Category:

Science & Technology

Tags:

• law
• Laplace
• magnet
• magnetic
• electricity
• Lorentz
• force
• physics
• homo
• polar
• electric
• motor

[ivanmzr]

This is great, how much voltage you applied?

[HifiCentret]

Thanks :)

Well, this isn't as much about voltage as it's about current since the source you apply is practically short circuited. So I can't tell you the voltage. But I can tell you the amperage and it's 200 mA (0.2 A) delivered by a small lead acid charger. If trying to replicate this setup please use a power supply which can take short circuit or build/use a current limiter which can. A simple one is really just a resistor in series calculated for current when put on the power supply.

[lesotl]

Mr. Lorentz ,

I like your accent :)

[HifiCentret]

Thanks for nice comment :)

In reality I'm not very happy about it. But hey it's not my primary language ;)

[kaderoder]

And if you pass the current through the magnet itself, you will get a 'lorenz o' , a spinning vortex, which is the basis for all electric motors. In fact everything in the entire universe, micro or macro, is fundamentally based on electro-magnetism.

[SouthNJPC]

@HifiCentret

Or stick a light bulb inline.

[bloosea123]

thats ehhhhh pretty ehhh fascinating ehhhh thanks for, thanks for ehhhhh good ehhhh video.

[nicenow25]

very good

[kavsi]

There's a rule of sorts for this exact Law and it states that: if you take your thumb to be the current (direction) and your fingers, the magnetic field (stretched out,and again in the direction of the magnetic field) then the direction of the force would be,figuratively speaking, coming out of your palm.

[jimmygboyd]

very cool

[MrJohnGamaw]

Flaplace ,max =B*I*L

[x65535x]

I had a Physics professor that would love this setup. He always joked about having one and using it as a generator for his house when we would do problems about the setup.

[zwelis]

I like the video.

[zwelis]

Nice demonstration. Good principle and video. Well done.