Question

Draw Different types of magnets and explain there propery.


Pls answer these and explain too pls​

Answer 1

Answer:

Magnetism

Electromagnetism is the force produced when an electrical current flows through a simple conductor such as a piece of wire or cable.

A small magnetic field is created around the conductor with the direction of this magnetic field with regards to its “North” and “South” poles being determined by the direction of the current flowing through the conductor.

Magnetism plays an important role in Electrical and Electronic Engineering because without it components such as relays, solenoids, inductors, chokes, coils, loudspeakers, motors, generators, transformers, and electricity meters etc, would not work if magnetism did not exist.

Then every coil of wire uses the effect of electromagnetism when an electrical current flows through it. But before we can look at Magnetism and especially Electromagnetism in more detail we need to remember back to our physics classes of how magnets and magnetism works.

The Nature of Magnetism

Magnets can be found in a natural state in the form of a magnetic ore, with the two main types being Magnetite also called “iron oxide”, ( FE3O4 ) and Lodestone, also called “leading stone”. If these two natural magnets are suspended from a piece of string, they will take up a position in-line with the Earth’s magnetic field always pointing north.

A good example of this effect is the needle of a compass. For most practical applications these natural occurring magnets can be disregarded as their magnetism is very low and because nowadays, man-made artificial magnets can be produced in many different shapes, sizes and magnetic strengths.

There are basically two forms of magnetism, “Permanent Magnets” and “Temporary Magnets”, with the type being used dependant upon its application. There are many different types of materials available to make magnets such as iron, nickel, nickel alloys, chromium and cobalt and in their natural state some of these elements such as nickel and cobalt show very poor magnetic quantities on their own.

However, when mixed or “alloyed” together with other materials such as iron or aluminium peroxide they become very strong magnets producing unusual names such as “alcomax”, “hycomax”, “alni” and “alnico”.

Magnetic material in the non-magnetic state has its molecular structure in the form of loose magnetic chains or individual tiny magnets loosely arranged in a random pattern. The overall effect of this type of arrangement results in zero or very weak magnetism as this haphazard arrangement of each molecular magnet tends to neutralise its neighbour.

When the material is Magnetised this random arrangement of the molecules changes and the tiny unaligned and random molecular magnets become “lined-up” in such a way that they produce a series magnetic arrangement. This idea of the molecular alignment of ferromagnetic materials is known as Weber’s Theory and is illustrated below.

Answer 2

$\huge{\boxed{\fcolorbox{cyan}{red}{Answer}}}$

$\sf\orange{\underline{\:What \:is \:Magnet}}$

A magnet is an object which attracts piece of iron steel , nikal and cobalt .

$\sf\pink{\underline{Properties \:of \:magnet}}$

$\sf\blue{Poles \:of \:magnet}$ - The ends of magnet where the magnetic effect is maximum are called poles of magnet . A magnet has two poles north pole and south pole .

$\sf\blue{Directional \:property}$ - When a magnet is suspended freely it always comes to rest in North South direction .

$\sf\blue{Attraction \:or \:repulsion \:in \:a \:magnet}$ - The magnet poles erect force on each other like poles repel each other and unlike poles attract each other .

$\sf\blue{Magnet \:poles \:exert \:in \:pairs}$ - The poles of magnet can't be separated if a tar magnet is cut into pieces each piece will behave as a complete magnet leaving north and south pole .

$\sf\blue{Magnetic \:field}$ - The space around a magnet is wheel the force of the magnet can be elected in called the magnetic field of the magnet .

• The magnetic field is stronger near the poles
• Strangth of magnetic hold has both direction as well as magnetic so it is Victor .

$\sf\blue{Magnetic \:field \:lines}$ - The magnetic field lines are those imagine by lines which continuosly represent the reaction by the magnetic field .

$\sf\red{\underline{\:Types \:of \:magnet \:and \:there \:properties}}$

$\sf\green{There \:are \:3 \:main \:type \:of \:magnet}$

• Permeant magnet
• Temporary magnet
• Electromagnets

$\sf\pink{Permeant \:magnet}$ - Permanent magnets are those magnets that are commonly used. They are known as permanent magnets because they do not lose their magnetic property once they are magnetized.

$\sf\pink{Temporary \:magnet}$ - Temporary magnets can be magnetized in the presence of a magnetic field. When the magnetic field is removed, these materials lose their magnetic property.

$\sf\pink{Electromagnets}$ - Electromagnets consist of a coil of wire wrapped around the metal core made from iron. When this material is exposed to an electric current, the magnetic field is generated making the material behave like a magnet. The strength of the magnetic field can be controlled by controlling the electric current.

$\sf\purple{\underline{Different \:shape \:of \: magnet}}$

• Bar magnet
• Cylindrical magnet
• horse shoe magnet
• U - shaped magnet
• Ring magnet
• Button magnet

$\sf\orange{Bar \:magnet}$ - A bar magnet is a rectangular piece of an object, made up of iron, steel or any other ferromagnetic substance or ferromagnetic composite, that shows permanent magnetic properties.

$\sf\orange{Cylindrical \:magnet}$ - A cylindrical rod is also known as rod magnets that have a thickness equal to larger than the diameter enabling high magnetism property.

$\sf\orange{Horse \:shoe \:magnet}$ - is a magnet made in the shape of a horseshoe or a U shape and has become the most widely recognized symbol for magnets.

$\sf\orange{Ring \:magnet}$ - Ring magnets are permanent magnets that are distinguished by their shape .

$\sf\orange{Button \:magnet}$ - Button magnets are strong, round-shaped magnets that can be used in virtually every industry for multiple purposes ranging from office whiteboards and home decor to industrial holding applications where high magnetic strength is required.

$\sf\red{Here \:we \:get \: your \:answer :)}$