Featured Categories

Our Ranges Catergorised

more
Eco Friendly Gifts -> (887)

Executive Gifts -> (5713)

Mens Gifts -> (2543)

Ladies Gifts -> (6766)

At The Office -> (3881)

Caps & Clothing -> (3157)

Luggage & Bags -> (5284)

Pens & Writing -> (6311)

Conference Folders -> (1593)

Drinkware ->

Homeware & Hotel -> (5548)

Kiff Keyrings -> (1489)

Tea & Coffee Time -> (1394)

Behind The Bar -> (1036)

Clocks & Watches -> (3321)

Computer Accessories -> (959)

Conference Corner -> (22)

Fresh Outdoors -> (1433)

GiveAways & Novelties

Gizmos & Gadgets -> (2790)

Lights & Torches -> (1208)

Personal Stuff -> (1886)

Radio's & Sound -> (548)

The Golfing Range -> (734)

Tools & Hardware -> (411)

Travel Things -> (1413)

Kids, Fun & Games -> (2394)

Leather Range -> (308)

Party Props -> (2375)

Purely Promotional -> (1631)

Smoking Section -> (1060)

Sports Section -> (1148)

Stationery Supplies -> (2443)

Sunglasses & Novelty -> (466)

Exclusive Cookware -> (1533)

Purely African -> (1225)

Appliance Arena -> (740)

Our Brands

more

Sort By Brand Names

more

Sort By:

more
Product Colour ->

Product Material ->

Receipients Personality ->

Season ->

Specific Occasion -> (875)

Sort By Price

more

Specify own range

to

Predefined ranges

Under R1.18
From R1.18 to R5.90
From R5.90 to R29.50
From R29.50 to R59.00
From R59.00 to R118.00
From R118.00 to R295.00
From R295.00 to R590.00
From R590.00 to R1,180.00
From R1,180.00 to R1,770.00
From R1,770.00 to R2,950.00
R2,950.00 and above

Sort by Personality

more

Language Selector

Currency Selector

Follow Perkal

Follow Me on Pinterest
How Do Magnets Work? by Perkal

New Page 1

What is a magnetic field? 
Magnets have magnetic fields that attract items containing iron, nickel, and steel. A magnetic field is the result of moving charges similar to an electrical current moving through a wire. An electrical current occurs when subatomic negatively-charged particles called electrons move through a wire. Motion causes a magnetic field to form around the wire.

A magnetic field either attracts or repels. Magnets have two ends that are referred to as the north and south poles. In order to attract another magnet, these poles have to be facing opposite ends. In order to cause a magnet to repel, these poles have to be facing one another.

Here are a few facts about magnets and how they function at a subatomic level:

Magnet Facts
- The north pole of the magnet points to the geomagnetic north pole.
- North poles repel north poles.
- South poles repel south poles.
- North poles attract south poles.
- South poles attract north poles.
- The force of attraction or repulsion varies according to distance between magnets.
- The strength of a magnet varies in different places on the magnet.
- Magnets are strongest at their poles.
- Magnets strongly attract steel, iron, nickel, and cobalt.
- Magnets slightly attract liquid oxygen and other materials.
- Magnets slightly repel water, carbon, and boron.

Magnets at the Subatomic Level
Atomic magnetism is the technical term that describes the act of an element's attraction to a magnet.  There are a few elements in the atomic table that are attracted by magnets; however, some alloys made from various metal combinations make better magnets.

Protons and neutrons live around the nucleus of the atom where electrons are in movement. It was once believed that electrons had circular orbits, like planets orbiting around the sun, but a later discovery proved that theory false. Electrons follow an orbital path that can be determined by using a scientific process called Schroedinger’s wave equations. Electron orbitals are also determined using Heisenberg’s uncertainty principle and probability theory.

According to quantum mechanics, numbers and letters are assigned to electrons that occupy shells around the nucleus of the atom. Within the shell, suborbitals may exist. These are assigned different letters and numerals. Orbitals can look like spheres, hourglasses, or like beads on a bracelet. With quantum mechanics, variables are assigned to help mark the path of the electrons, neutrons, and protons on a subatomic level.

Only two electrons can occupy a suborbital; one has an up-spin and the other has a down-spin. Two electrons with the spin UP can not occupy the same suborbital, because two electrons in a suborbital field will cancel each other out. This is called the Pauli exclusion principal.

Studies are still being conducted to discover the subatomic mysteries that cause magnets and magnetic fields to function. In everyday use, magnets serve multiple functions that render them very useful whether their intricate function is understood or not!

 

Please click here (link attached) to view our magnetic based products

This article was published on Thursday 03 June, 2010.

Product Search Tool

 
Use a keyword or product code to find the appropriate product.
Advanced Search
Search Help [?]

Members Login

Your Email Address
Your Password

Log in is done securely
Not yet a Member? Join now
Forgot password? Click here

Why Choose Perkal?

70000+ products from over 300 suppliers all over the world.

No Minimum order requirements on 99% of our range

Extremely Competitive Pricing We will beat any written quote!

Every Product is  Guaranteed

Our Site is 100% Safe & Secure. We use 128 bit encryption to secure our site

Discounted Pricing for Corporate and Trade Clients

We offer Branding on every product with a quick turnaround time

Served over 20000 happy customers to date

Unparalleled Customer Service

We can source almost any product from our China Office - subject to min orders

Specials

more
Solstice Laptop Backpack

Solstice Laptop Backpack
 R352.23  R302.02 

Current Bestsellers

more
Bottle opener Keyring - Min Order 100 units
01. Bottle opener Keyring - Min Order 100 units
R5.31

Key Finder - Whistle Keyring
02. Key Finder - Whistle Keyring
R46.96

Activate Mints
03. Activate Mints
R4.37

Pop-It Bottle Opener Keyring
04. Pop-It Bottle Opener Keyring
R4.46

Penflex Ballpoint Clear Meduim Black 50 - Min orders apply, plea
05. Penflex Ballpoint Clear Meduim Black 50 - Min orders apply, plea
R1.62

Pencil with Erazer
06. Pencil with Erazer
R1.12

Executive Talking Clock-Silver

07. Executive Talking Clock-Silver
R81.42

VUVUZELA
08. VUVUZELA
R35.34

Maxwell & Williams Wba Chef Bowl 6Cm - Min Orders Apply
09. Maxwell & Williams Wba Chef Bowl 6Cm - Min Orders Apply
R10.62

Fiesta Pen - Min Order 100 units
10. Fiesta Pen - Min Order 100 units
R3.98

Product Of The Week

Doctors Pen

Doctors Pen
Price  R9.91  
Buy Now

News & Articles

New Articles (58)
All Articles (637)
Cool Gift Concepts (48)
Corporate Gift - Branding
Corporate Gift Articles (388)
Corporate Gift Ideas (9)
Gadget Articles (60)
Gifts in The Press (75)
Promotional Clothing Articles (36)
Webpage News (20)
General News (24)

Search Articles Text

Featured Products

more
Swivel, multifunctional calendar with calculator, temprature, ti
Swivel, multifunctional calendar with calculator, temprature, ti
 R155.96 

Ads

Latest products

more
Shroom Bluetooth Speaker

Shroom Bluetooth Speaker

Our Price: R130.74