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Bar Magnet – Uses and Properties

Bar Magnet – Uses and Properties: A magnet is anything that generates a magnetic field. This magnetic field is invisible, but it is responsible for a magnet’s most notable property, a force that attracts or repels other ferromagnetic materials such as iron, steel, nickel, cobalt, and other magnets.

A bar magnet is a rectangular portion of an object with permanent magnetic properties formed of iron, steel, or any other ferromagnetic substance or ferromagnetic composite. It has two poles, one north and one south, and when suspended freely, the magnet aligns itself so that the northern pole points to the earth’s magnetic north pole.

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Bar Magnet: As an equivalent Solenoid

A solenoid is a type of electromagnet that produces regulated magnetic fields by running an electric current through it. It is a coil with a length greater than its diameter. A bar magnet can be proven as a solenoid by calculating the axial field of a finite solenoid carrying current.

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Bar Magnet in Magnetic field

We can grasp the concept of the magnetic field by performing a task, which will help us understand the notion of magnetic field lines.

  • Put some iron filings on a piece of paper.
  • Sandwich a bar magnet between them.
  • We see that the fillings align when we tap the paper.

Now, take a look at the properties that a magnetic field has:

  • Magnetic field lines are imaginary lines that can be drawn along any magnetic substance’s magnetic field.
  • Magnetic field lines have particular qualities, such as forming continuous closed loops, as do the magnetic field lines of a magnet.
  • The direction of the net magnetic field B at any place is represented by the tangent to the field line.
  • The magnitude increases as the number of field lines crossing per unit area increases. Also, the lines of the magnetic field never intersect with one another.

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Bar Magnet: Properties

The properties of Bar magnet is as follow:

  • At both ends, it has a north pole and a south pole. Even after splitting a bar magnet in half, each portion will have a north pole and a south pole. It doesn’t matter, how many pieces you break it into.
  • It has the strongest magnetic force at the pole.
  • If a thread is used to suspend this magnet in the air, it will not come to rest until the poles are oriented north-south. This attribute is used by a Mariner’s Compass to determine direction.
  • When two bar magnets are positioned near together, their unlike poles attract each other while their like poles repel each other.
  • All ferromagnetic materials, such as iron, nickel, and cobalt, are attracted by a bar magnet.

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Bar Magnets: Uses

  • In the laboratory, bar magnets are employed as stirrers for magnetic studies.
  • They can also be used in medical operations.
  • Magnets are used in electronic devices such as telephones, radios, and television sets.
  • Bar magnets are used in a variety of industries for collecting loose metals and preserving the magnetism of other magnets.

 

FAQs on Bar Magnet

What are bar magnets and how do you use them?

A rectangular section of the object is called a bar magnet. Iron, steel, or any other ferromagnetic substance or ferromagnetic composite make up this device.

What are the uses of a bar magnet?

Bar magnets are used to pick up small metallic objects such as metal shavings, nails, and screws, as well as magnetic stirring rods in laboratory applications and refrigerator magnets.

Is a permanent magnet an electromagnet?

An electromagnet is a temporary magnet that generates a magnetic field by passing electric current via a coil coiled around a soft iron core.

What exactly is the distinction between a magnet and a bar magnet?

When an electric current is supplied through wires wound around soft metalcore, an electromagnet is created. When a current flow is interrupted, an electromagnet loses its magnetic.

Which magnet is more powerful: a bar magnet or a horseshoe magnet?

Because of their form, horseshoe magnets are more powerful than bar magnets.

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