Both the bar magnet types can produce a strong magnetic field effectively. W is the work done while moving the magnet around the wireĪ rectangular magnet shaped in the form of a bar can be of two major types: a cylindrical bar magnet and a rectangular bar magnet.The formula for calculating the pole strength is as follows: Pole strength can be defined as the strength of the magnetic pole to attract magnetic materials towards itself. Many industries use bar magnets for the collection of loose metals and iron scrap and also for retaining magnetism of existing magnets.Electronic devices such as telephones, radios, and television sets use magnets.They also find applications in medical procedures.Bar magnets are used as stirrers in laboratory for magnetic experiments.The magnetic field lines never intersects each other.
More is the number of field lines crossing per any defined unit area, the stronger is the magnitude of the magnetic field B.The tangent drawn to the field line at any point represents the direction of the net magnetic field B at that point.The magnetic field lines of a magnet form continuous closed loops.The magnetic field lines possess certain properties. The magnetic field lines area set of imaginary lines that can be drawn along the magnetic field that is acting around any magnetic substance. The patterns formed by the iron filings show us the magnetic field lines that surround this bar magnet. Now tap the paper, we will notice that the fillings get aligned in the form of many lines. On a sheet of paper, place a bar magnet and sprinkle iron fillings on the sheet of paper around the magnet so that the bar magnet appears to be in between. Let us understand the concept of magnetic field lines using the activity which is described below. A bar magnet will attract all ferromagnetic materials such as iron, nickel and cobalt.If two bar magnets are placed close to each other, their unlike poles will attract and like poles will repel each other.A Mariner’s Compass uses this property of orientation to determine the direction. If this magnet is suspended freely in the air with a thread, it will not come to rest until the poles are aligned in a north-south magnetic position of earth.The magnetic force of it is the strongest at the pole.Even if we break a bar magnet from the middle, both the pieces will still have a north pole and a south pole, no matter how many pieces we break it into. It has a north pole and a south pole at two ends.Properties of Bar MagnetĪ bar magnet’s properties are mostly similar to those of a permanent magnet. When it is suspended freely, the magnet aligns itself so that its north pole points towards the magnetic north pole of the earth. The magnet consists of two poles: a north and a south pole. It is made up of iron, steel or any other ferromagnetic substance or its composite having permanent magnetic properties. Introduction of Bar MagnetĪ bar magnet is a rectangular piece of an object. A magnet, which is shaped in the form of a rectangular bar, is known as a bar magnet. One can make artificial magnets in different shapes and sizes.
Such human-made magnets have the ability to create a relatively stronger magnetic field. Magnets produced by humans by applying scientific magnet-developing technologies are known as artificial magnets. In comparison to artificial or man-made magnets, natural magnets are much weaker. An important example of a naturally occurring magnet is a lodestone.
They possess relatively weak magnetic abilities and do not strongly attract ferrous materials. Magnets that are available in nature are called natural magnet. The classification of magnets is done based on the procedure of the magnetism done, the ability to produce a magnetic field, and the capacity of a magnet to retain magnetic abilities. Magnets are primarily divided into two groups, namely, natural magnets and artificial magnets. Magnet is the only object which is capable of creating a magnetic field around itself. Bar magnets finds its use in various industrial applications and are also used extensively in laboratories alongside educational fields. Of all these, the bar magnet has many diverse properties and types. There are different types of natural and artificial magnets present. Magnetism is thus an extremely interesting phenomenon.
0 kommentar(er)
