Electromagnetism!

Many have wondered why electromagnetism exists here on Earth. Most of the people don't know what really is the main meaning and purpose of electromagnetism
that it had been discovered here on Earth. Actually, electromagnetism plays an important role here in our life.
Devices at home is one of the examples or products of electromagnetism.
Electromagnetism is really did fascinating.
It is easy to forget that the ``old-fashioned'' physics we learn today was once new
 and exciting and that it was discovered by people of incredible imagination.

 

 
As we know electromagnetism is under the field of physics which means the study of the
properties of electric and magnetic field and  also the force affected by the presence and motion
of such particles.

image source:google.com


I want to tell you based on what I have read the story of the person
who made important contributions to electromagnetism.


image source:google.com

Hans Christian Oersted
This document is a copy of one found in the contribution of Oersted.

"On 21 April 1820, while preparing for an evening lecture,
Oersted noticed a compass needle deflected from magnetic
north when electric current from a battery was switched on
and off. This deflection convinced him that magnetic field radiate
 from all sides of a wire carrying an electric current, as do light
and heat, confirming a direct relationship between electricity and
magnetism. Three months later he began more intensive investigations
and soon there after published his findings,showing that an electric
current produces a magnetic field as it flows through a wire."

A SAMPLE VIDEO FOR THE INTRODUCTION OF ELECTROMAGNETISM!

To understand the subtopics of electromagnetism like ELECTROMAGNET’S CONTENT. You may explore.

HOW TO USE ELECTROMAGNETISM?

Electricity and magnetism are closely related, and the physics of these two similar properties is known as electromagnetism. An electromagnet is a device using an electrical current to generate a magnetic field. You can make a simple electromagnet by wrapping insulated wire around an iron nail and connecting the wire to a battery. One of the most well-known practical applications for electromagnets is to move heavy metal objects such as crushed cars. However, there are also many other common uses for electromagnets. Its will be explained below.

ELECTROMAGNETISM:

WHAT IS AN ELECTROMAGNET?

HOW DOES IT WORK?

I think you’re not familiar with this thing.I’ve learned this thing when our teacher gave us an assignment about this. We experienced to understand electromagnet just by viewing or just by looking the simple diagram and a sample door knob  given by our teacher. When we are about to understand the topic we found out what is the meaning of an electromagnet.

So, what is an electromagnet? For me an electromagnet powerful magnetic effect inside a coil. It works because an electric current produces a magnetic field. The magnetic field produced by an electric current forms circles around the electric current.

http://upload.wikimedia.org

As you know the meaning of electromagnet, do you know how it works?

Th­e basic idea behind an electromagnet as far as I know is extremely simple:

By running electric current through a wire,

you can create a magnetic field and

by using the  simple principle.

Below is a sample video on how electromagnet works.

TRY TO HAVE FUN!

Investigate the magnets found in a

typical kitchen.

Try to pick up metal filings with

the electromagnet.

ELECTROMAGNETISM:

USES OF ELECTROMAGNETS
 &
ELECTROMAGNETISM



Now you know already what is the meaning of an electromagnet and how it works.
Now, I'll show you the applications or functions of electromagnetism and electromagnet in our everyday life.


    Electromagnetism plays a fundamental role in speakers, microphones, car starters,
 doorbells, boilers,MRI's, household appliances and dialysis machines,cathode ray tube,
magnetic media for example.Electromechanical devices rely on electromagnetism to do such
operations as latching, pulling and lifting. Radios and television operate using electromagnetic waves.
X-ray machines are used in medicine and security. AC generators deliver electricity to buildings.
 Really it is plays an important role in our life.
 

 

 
 

 

 

USES OF ELECTROMAGNETS

 

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