what material ,when placed between a magnet and a piece of iron will stop the attraction?

Answer 1

Materials with high permeability will bend and concentrate the magnetic flux from a magnet. Inserting another piece of iron between the magnet and piece of iron may lower the magnetic field enough that the piece of iron is not attracted as strongly. One high permeability material available commercially and which is used to shield sensitive electronic devices such as photomultiplier tubes from magnetic fields is called mu-metal.

Answer 2

A large slab of four feet thick concrete, betwwen the magnet and piece of iron. If not use a piece 6 feet thick. The magnet's magnetic field will be attentuated by a suitable thickness of material.
An articifial electromagnetic substance (with the electricity turned on), should counteract/overpower the natural attraction of the magnet.
Dan the Answers-Man.

Answer 3

If the North pole and South pole of the magnet are joined by a high permeability substance like 3% silicon iron then the field will be confined to it, with no flux outside. And an iron piece outside will not be attracted.

Answer 4

The very high permeability material called mu-metal is used for magnetic shielding.

Answer 5

No such thing? arent speakers SHEILDED so the magnets dont effect your tv screen? Something on back of the speaker is stopping the magnetic feild right? And its not that thick

Answer 6

u cant stop the field.maybe u can put a powerful magnet to make the relative field on iron to be zero.and for tht u cant put it in the middle of them.somewhere near them depending on it magnitiude

Answer 7

none

magnetic fields are impervious to all elements except iron.

Answer 8

space

Answer 9

To my knowledge there is no such thing.

Answer 10

There isn't one.