Q:Is the refrigerator strip sealed with magnetic material?

The door seal of the refrigerator is a combination of sealant and inside magnetic stripe. The magnetic stripe is of course magnetic material.

Q:Is there such a thing as an anti-magnetic material, or magnetic field absorbing material? I have 7.1 speakers for gaming, but I use a CRT monitor (I‘ve used a decent LCD for 2 months, for gaming I went back to CRT(color quality)). I ask, because it of course, ruins my screen-over time.

This Site Might Help You. RE: Anti-magnetic Material? Is there such a thing as an anti-magnetic material, or magnetic field absorbing material? I have 7.1 speakers for gaming, but I use a CRT monitor (I've used a decent LCD for 2 months, for gaming I went back to CRT(color quality)). I ask, because it of course, ruins my screen-over time.

Q:Why cant magnetic field lines cross?

here is the answer Magnetic field lines are just a representation of the field itself. The lines are not real in that sense, but they tell us where the field is pointing at any chosen point in space. Now if the lines cross, that would mean that the field at the crossing point is pointing in two directions which would be contradicting our original idea. A horse shoe magnet is made of hard magnetic material where the magnetisation is stiff and less flexible than in a soft iron magnet. Hence we do not use a horseshoe magnet for electromagnets because we cannot control the magnetisation as well as we can for the soft iron. However, you can still use electromagnetic methods to magnetise the horseshoe magnet. Nobody knows how earth's field comes about. here is my other answer Field lines don't cross because a magnetic object placed at a point in the field moves only in 1 direction due to attraction or repulsion. If 2 lines crossed, it means the object can move in 2 directions, which is not the case!

Q:Why can not heat treatment of magnetic material exceed Curie temperature?

The ferromagnetic material is magnetized with strong magnetism, but with the increase of temperature, the thermal motion of metal lattice intensifies will affect the ordered domain moment, when the temperature reaches the neat enough to break the domain magnetic moment, magnetic domain disintegrated, the average magnetic moment becomes zero, the ferromagnetic material magnetic disappear into CIS magnetic material, a series of ferromagnetic properties associated with magnetic domains (such as high permeability, hysteresis loop, magnetostrictive etc.) disappeared. The permeability of the ferromagnetic material of the corresponding permeability into paramagnetic substance.

Q:Bought the magnetic rack are sucked together, how to open ah?

When the temperature reaches about 105 degrees, due to magnetic material of the magnet magnet disappeared, it lost the suction, then the springs between the magnets and magnetic materials to separate them, and drive the power switch is disconnected, stop heating.

Q:Why do most ferromagnetic materials have no overall magnetic field? Explain in terms of magnetic domains.

If the domains are not organized, ie, pointing in random directions, they cancel each other out and there is no net magnetic field.

Q:i just wanted to know

I've read the other answers and I'm surprised that no one has gotten the right answer yet. There is type of metal that is found naturally in the earth and is already magnetic in nature. It's what the original compasses were built with. In ancient times, it was called lodestone. I believe in modern times it's call ferrite. Iron and steel (which is iron with oxygen) can have their atoms aligned to become magnets but only after being exposed to a pre-existing magnetic field. There is no substance including iron, steel or lodestone that can produce electricity of it's own accord, except for static electricity. In order to do so, they would have to be placed along with wires and such to create a circuit. Electrons and the electromagnetic force won't flow without creating a circuit to flow through, again, except for static electricity. Ed

Q:what is meant by this ‘cold roll grain orientation‘?

I think it reduces hysteresis and maybe increases relative permeability. What gives a magnetic material the ability to concentrate a magnetic field is all the tiny, movable magnetic domains within the material lining up along with the applied field, and adding to it. Some of the domains can get stuck after the field is removed, causing hysteresis(residual magnetization). And the degree to which this happens depends on the mircostructure of the metal. Most metals, unless they're made specifically to be single crystal which is difficult and expensive, are made up of billions or microscopic pieces of pure crystal separated by impurities in the metal. These little crystals are called grains. And the impurities between grains, grain boundaries. The number of domains that are available to move(this is what determines a materials permeability) also depends somewhat on the microstructure of the metal. Atoms act differently at grain boundaries than they do within the grain. And the orientation of the crystal within the grain makes a difference as well. The way a metal is worked changes the grain structure, maybe from short fat grains to long thin grains, fore eample. And crystals with random orientations to more organized orientations.

Q:3. What do cobalt, nickel, gadolinium, and the rare metal dysprosium have in common? They are all magnetic materials.They all are used to make steel.They can only be found on Earth.They do not have anything in common.7. For a magnetic field to be created, the areas of magnetic atoms, called __________, must be aligned sdomainsdistrictsfields8. A __________uses the natural magnetism of the Earth to help people determine their location and the direction they are heading.lodestonedomaincompassmotor

As Jeff said, most people are right handed, so the throttle gets used by the right hand. As far as the left hand handling the clutch, that's not the way it has always been. Most old bikes had a foot clutch and a hand shifter on the side of the tank. With one foot having to hold the clutch down, that meant that when stopped, you had to balance yourself with one foot only. If you lost your balance, the natural reaction was to put your foot down, which released the clutch and away you went. A Devis's Advocate once told me that happened to him and he ended up plowing through the glass doors at the courthouse. As far as the foot shifter goes, when shifting on the old bikes, that meant you had to remove your hand from the handlebars, increasing the chance of losing control on the rough, rutted roads they had back then. You wouldn't want the clutch on the same side as the throttle because it would be too difficult to operate both at the same time. Since you need to let the clutch out (forward) as you roll the throttle backwards, that means your hand would need to be going both directions at the same time. As far as which side the shift lever and brake lever are on, old Brit bikes were opposite where they are now. It doesn't really matter and the difference back then was no different than the steering wheel being on different sides in different countries.

Q:A dog is being slowly pulled by his dog chain across the ground at a constant speed. What forces are being applied:a. force frictionb. force due to gravityc. magnetic forced. normal forcee. spring forcef. tensiong. applied forcethere can be more than one answer.

Possibly all.no problem justifying all but (c) (e) c) It depends on the material of the dog chain, if magnetic material it would feel a magnet pull of the earth's magnetic field. e) this is really stretching it :) but perhaps the dog chain has a spring on it or the material of the chain is such that there is a little elastic give back once the tension (force) pulling on it is released.