Superconductivity

INTRODUCTION

Weve all heard about superconductivity. But, do we all realise what it

is? How it works and what are its uses? To start talking about

superconductivity, we must canvas to understand the how normal conductivity

works. This for nominate make it much easier to understand how the super part

functions. In the following paragraphs, I will explain how superconductivity

works, some of the flowing problems and some examples of its uses.

CONDUCTIVITY

Conductivity is the ability of a substance to carry electricity. Some

substances want copper, aluminium, silver and gold do it very well. They are

called conductors. Others conduct electricity partially and they are called

semi-conductors. The concept of electric transmission is very simple to

understand. The wire that conducts the electric current is made of atoms

which cede equal numbers of protons and negatrons making the atoms

electrically neutral. If this balance is disturbed by gain or loss of electrons,

the atoms will become electrically charged and are called ions. Electrons

occupy energy states. Each level requires a certain amount of energy. For an

electron to move to a higher level, it will require the compensate amount of energy.

Electrons can move amongst different levels and between different materials

but to do that, they require the right amount of energy and an empty slot in

the band they enter. The metallic conductors learn a lot of these slots and

this is where the free electrons will head when potentiality (energy) is applied. A

simpler way to look at this is to think of atoms aligned in a straight line (wire).

if we add an electron to the beginning atom of the line, that atom would have an

excess of electrons so it releases an other electron which will go to the

second atom and the process repeats again...

If you want to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper