Lenz's Law with Feel Flux

Feel Flux-- available as a set, or individually (all come with the super powerful sphere magnet) here:

From feelflux.com: BUY NOWCopper Feel Flux

Get some magnetic viewing film here: 

From Amazon: BUY NOW: Color Magnetic Viewing Film
From Educational Innovations: BUY NOW Regular Magnetic Viewing Film 

Note: this site contains affiliate links for which I may be compensated

Lenz's Law: a strong Feel Flux neodymium magnet falls slowly down a thick walled copper tube as though passing through a viscous liquid. Since magnetic fields pass through copper, magneview film reveals the location of the falling dipole magnet. The moving magnetic field from the falling magnet produces electric currents in the copper- these currents then produce magnetic fields that have the opposite polarity to the initial field. So a falling magnet makes the copper pipe briefly into an electromagnet that then repels the falling magnet. Special thanks to the guys from Feel Flux who kindly sent me this awesome longer piece of the copper tube from which their amazing toy is produced. 

Feel Flux Loop

Available as a set, or individually (all come with the super powerful sphere magnet) here:

From feelflux.com: BUY NOW: Copper + Aluminum Feel Flux

See my other posts on the Feel Flux devices

Note: this site contains affiliate links for which I may be compensated

Feel Flux Loop: original (copper) and the "Skill Flux" version (aluminum)- toys that use Lenz's Law to manipulate a very strong neodymium magnet. A changing magnetic field (such as that from a falling magnet) induces an electric current in the copper, which in turn produce an electromagnetic field (but of lesser strength) with opposing polarity. Interestingly the magnet falls a bit faster through the aluminum even though the walls are thicker- Al is only about 60% as conductive as Cu- so it takes more material to induce the needed magnetic field using aluminum. Interestingly the Al tube is about half the mass of the Cu one, even though it is larger in volume.

Feel Flux

Get one here: 
From feelflux.com: BUY NOW Feel Flux 

Note: this site contains affiliate links for which I may be compensated

Feel Flux: a toy utilizing Lenz's Law- a very strong neodymium magnet falls slowly down a copper tube as though passing through a viscous liquid. Moving magnetic fields produce electric currents in a conductor (such as copper). These currents then produce magnetic fields that have the opposite polarity to the initial field. So a falling magnet makes the copper tube briefly into an electromagnet that repels the magnet.


Viewing the Feel Flux Magnetic Field

Get this device here: 
From feelflux.com: BUY NOW Feel Flux 

Get some magnetic viewing film here: 
From Educational Innovations: BUY NOW Magnetic Viewing Film 

From Amazon: BUY NOW Magnetic Viewing Film

Note: this site contains affiliate links for which I may be compensated

Viewing the Feel Flux Magnetic Field: Magneview film reveals the powerful field of the neodymium magnet as it falls with terminal velocity through the copper tube of the Feel Flux toy.