Application of the Theory of Wired and Wireless Communication and Related Technologies is a complete project topics and materials from chapter one to five with references. You can download it here.
ABSTRACT
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Verification of the fundamental theory of electromagnetism was carried out. Investigation on Faraday’s law, Lenz’s law and Fleming’s left hand rule using some basic methods and instruments such as magnets, copper coil, galvanometer were carried out. Eddy current flows in closed loops within conductors.
Eddy current creates a magnetic field that opposes the magnetic field that created it by Lenz’s law. For Fleming’s Left Hand rule, when the polarity of the magnet and the battery were changed respectively, the copper wire moves towards or away from the observer as expected.
Thus, magnetic fields are related to the current which serves as their source.
CHAPTER ONE
1.0 INTRODUCTION
The physics of the universe appears to be dominated by the effects of four fundamental forces; gravity, electromagnetism, weak and strong nuclear forces.
These forces control how matter, energy, space and time interact to produce our physical world. All other forces such as the force you exert in standing up are ultimately derived from these fundamental forces.
Most times we have daily experience with two of these forces; gravity and electromagnetism. Consider for example, the everyday sight of a person sitting on a chair.
The force holding the person on the chair is gravitational and that gravitational force balances with material forces that “push up” to keep the individual in place.
The electromagnetic force also makes possible the advanced technology that forms much of the basis of civilization.
Electronic gadgets such as televisions, electric fans, electric irons, microwave oven, and smart phones are made possible by control of electromagnetism.
The classical (i.e. non quantum theory of electromagnetism) was first published by James Clerk Maxwell.
A host of scientists during the 19th century carried out the work that ultimately led to Maxwell’s electromagnetism equations which is still considered one of the triumphs of classical physics.
Maxwell’s description of electromagnetism which demonstrates that electricity and magnetism are different aspects of a unified electromagnetic field holds true today.
Electromagnetism is a phenomenon that works. This is an aspect that most people do not get from the mathematical description of the physics of electromagnetism (Mahajan and Rangwalar, 1989).
1.1 EARTH’S MAGNETIC FIELD
This is also known as the Geomagnetic field. It is the magnetic field that extends from the Earth’s interior to where it meets the solar wind, a stream of charged particles emanating from the sun. Its magnitude ranges from 25 to 65 microteslas (0.25 to 0.65 gauss).
It is the field of a magnetic dipole currently tilled at an angle of about 10 degrees with respect to earth’s rotational axis as if there were a bar magnet placed at an angle at the centre of the earth.
The North and South magnetic poles wander widely but sufficiently slowly for ordinary compasses to remain useful for navigation. However, at irregular intervals averaging several hundred thousand years, the earth’s field reverses and the North and South magnetic poles relatively abruptly switch places.
These reversals of the geomagnetic poles leave a record in rocks that are of value to paleomagnetist. (Merrill and Ronald, 2010).
1.2 THE MAGNETOSPHERE
This is a region above the ionosphere and extends several tens of thousands of kilometers into space protecting the earth from the charged particles of the solar wind and cosmic rays that would otherwise strip away the upper atmosphere including the ozone layer that protects the earth from harmful ultraviolet radiation (Merrill and Ronald, 2010).
1.2 AIM
The aim of this project work is to develop familiarity with the fundamental theory of some basic methods of electromagnetism.
1.3 OBJECTIVES
- Provide an introduction to the application of the theory of wired and wireless communication and related technologies.
- Demonstrate Faraday’s laws, Lenz’s law and Fleming’s Left hand rule using locally sourced materials.
- Investigate the principles of governing electromagnetism.
1.4 JUSTIFICATION OF THE WORK
The purpose of this study was to observe the effects of electromagnetic fields in relation to the laws governing the study of electromagnetism.
1.5 THE SCOPE OF THE STUDY
The study of electromagnetism has made significant contributions through advances in new technologies that arise from theoretical breakthroughs, advances in the understanding of electromagnetism using Lenz’s law,
Michael faraday’s law and Fleming’s left hand rule towards the development of new products that have dramatically transformed modern day society such as television, computers, video players and other electrical appliances (Jiles, 1991).
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