If the two objects, which are the same in magnetic and volume, are magnetized in different external magnetic fields, and the object is magnetized in a strong magnetic field, and the object is magnetized in a weak magnetic field, then the magnetization of the object is large, B The magnetization of the object is small. Can it be said that the magnetic properties of the armor are stronger than those of the B? If they are magnetized in the same external magnetic field, their magnetization is the same. Therefore, the magnetization of an object is related to the strength of the external magnetic field. Experiments have shown that before the magnetic saturation is reached, the magnetization of the object changes in proportion to the external magnetic field, that is:
J = K 0 H
Where J is the magnetization of the object, ampere/meter;
H—— external magnetic field strength, ampere/meter;
K. - The proportional coefficient, called the volume susceptibility, is dimensionless.
   It can be seen from the above formula that the volume susceptibility K 0 is the ratio of the magnetization of the mineral particles to the strength of the external magnetic field and is an important magnetic index of the mineral. The physical meaning is that the mineral particles per unit volume are magnetized in the unit magnetic field strength. The resulting magnetic moment. Obviously, K indicates the size of the object is magnetized 0 ease, K larger value 0, indicating that the more easily magnetized. For the reverse magnetic ore particles K 0 < 0 , for the paramagnetic ore particles K 0 > O.
However, since the structure of the object is often uneven, there are often voids in the interior, so that when two objects of the same nature (same chemical composition) are magnetized in the same external magnetic field, they may have different magnetizations and different K. Value, which is primarily the result of the effect of voids within the volume of the object. The more voids, the less the number of oriented magnetic moments. Of course, in addition to the voids, there are other factors that affect the magnetization of the object, and it has not been studied enough. For this purpose, it is necessary to use a magnetization coefficient per unit mass, that is, a specific magnetic susceptibility x of the object. To illustrate the magnetic properties of the object. which is
It should be noted that X 0 and K 0 are important magnetic constants closely related to the nature of the ore. For most objects, such as weak magnetic objects x . And K. It is a constant, and only a few objects, such as X 0 and K 0 of ferromagnetic minerals, are not constant.
An outdoor barbeque grill is a grilling tool that is composed of a cooking surface typically made of parallel metal bars and porcelain covered metal grid. These bars of grid are mounted over a fuel source that is capable of generating intense heat with a temperature ranging from 500 degrees Fahrenheit to more than that. It is this heat actually that makes the grilling successful.
There are several types of outdoor barbequegrill. Two of the most common are charcoal and gas grill . They highly differ not only in sizes and shapes, but more to their features and functions. These types are now marketed throughout the word that you can find models of them in mails, shopping stores, and even in your neighorhood stores.
Charcoal Barbecue Grills
The charcoal outdoor barbecue grills are by far the least pricey option available. They come in different sizes and style, but the standard models are said to be difficult to install and are not readily available for cooking. You still need to take some time preparing for it, so if you are the type of person who is after promptness, then the charcoal type of outdoor barbecue grill may be the best option for you to consider.
Aside from that, the charcoal outdoor barbecue grills may create only a fair amount of smoke when lit. They also have the tendency to flare up, the reason that most households who are considering this grill type typically consider the area that they`re going to cook in. And, just like the other type of outdoor barbecue grill, the charcoal provides heat hat can`t easily be controlled, plus the cleaning up can be messy at times provided that you are using charcoal as a fuel source.
Gas Barbecue Grills
As the name implies, the gas outdoor barbecue grills use gas as the source of power. Unlike the charcoal type, this is pricier, but the fuel that they use is as readily available as the charcoal outdoor barbecue grills. Also, what`s nice to know about this type is that it can easily be assembled and installed. You can even cook your favorite meat just after lighting it up. And, they don`t create a smoke, but they tend to flare up just like in charcoal grills. Because of this fact, it is also important to consider the area you are going to cook in. In addition, the gas outdoor barbecue grill can be cleaned up easily and quickly as it is not messy as charcoal. The heat is even controllable, which means less effort and less hassle.
There are alternatives to the above mentioned types of outdoor barbecue grills. Whatever your final choice is, it is important to make sure that the grill you are considering can meet your specific requirements.
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