Types of electricity



Click Here for E-Book Details



Click Here for E-Book Details

There are two types of Electricity, Static Electricity and Current Electricity. Static Electricity is made by rubbing together two or more objects and making friction while Current electricity is the flow of electric charge across an electrical field.

Static Electricity

Static electricity is when electrical charges build up on the surface of a material. It is usually caused by rubbing materials together. The result of a build-up of static electricity is that objects may be attracted to each other or may even cause a spark to jump from one to the other. For Example rub a baloon on a wool and hold it up to the wall.

Before rubbing, like all materials, the balloons and the wool sweater have a neutral charge. This is because they each have an equal number of positively charged subatomic particles (protons) and negatively charged subatomic particles (electrons). When you rub the balloon with the wool sweater, electrons are transferred from the wool to the rubber because of differences in the attraction of the two materials for electrons. The balloon becomes negatively charged because it gains electrons from the wool, and the wool becomes positively charged because it loses electrons.

Current Electricity

Current is the rate of flow of electrons. It is produced by moving electrons and it is measured in amperes. Unlike static electricity, current electricity must flow through a conductor, usually copper wire. Current with electricity is just like current when you think of a river. The river flows from one spot to another, and the speed it moves is the speed of the current. With electricity, current is a measure of the amount of energy transferred over a period of time. That energy is called a flow of electrons. One of the results of current is the heating of the conductor. When an electric stove heats up, it's because of the flow of current.

There are different sources of current electricity including the chemical reactions taking place in a battery. The most common source is the generator. A simple generator produces electricity when a coil of copper turns inside a magnetic field. In a power plant, electromagnets spinning inside many coils of copper wire generate vast quantities of current electricity.

There are two main kinds of electric current. Direct (DC) and Alternating (AC). It's easy to remember. Direct current is like the energy you get from a battery. Alternating current is like the plugs in the wall. The big difference between the two is that DC is a flow of energy while AC can turn on and off. AC reverses the direction of the electrons.


Return To Electricity Forum

Subscription

 
Training Courses

2015 Electrical Code Update Training

  • September 8-9, 2015 - Victoria, BC
  • September 10-11, 2015 - Richmond, BC
  • October 5-6, 2015 - Edmonton, AB
  • October 7-8, 2015 - Calgary, AB
  • October 13-14, 2015 - Winnipeg, MB
  • October 15-16, 2015 - Mississauga, ON
  • October 22-23, 2015 - Halifax, NS

1-Day Arc Flash/Electrical Safety Workshop

  • September 14, 2015 - Richmond, BC
  • September 15, 2015 - Edmonton, AB
  • September 16, 2015 - Regina, SK
  • September 17, 2015 - Winnipeg, MB
  • September 21, 2015 - Mississauga, ON
  • September 22, 2015 - Moncton, NB
  • September 23, 2015 - St. Johns, NL

VFDs And Electric Motor Training

  • October 15-16, 2015 - Richmond, BC
  • October 19-20, 2015 - Edmonton, AB
  • October 21-22, 2015 - Winnipeg, MB
  • October 26-27, 2015 - St. Johns, NL
  • October 28-29, 2015 - Mississauga, ON

Electrical Testing and Commissioning Industrial Power Systems

  • October 19-20, 2015 - St. Johns, NL
  • October 21-22, 2015 - Mississauga, ON
  • October 26-27, 2015 - Winnipeg, MB
  • October 28-29, 2015 - Edmonton, AB

MV/HV Electrical Maintenance Practices

  • November 2-3, 2015 - Richmond, BC
  • November 4-5, 2015 - Edmonton, AB
  • November 9-10, 2015 - Winnipeg, MB
  • November 12-13, 2015 - Mississauga, ON

Instrumentation and Control for Electrical Professionals

  • November 3-4, 2015 - Mississauga, ON
  • November 5-6, 2015 - Winnipeg, MB
  • November 17-18, 2015 - Edmonton, AB
  • November 19-20, 2015 - Richmond, BC

Electrical Grounding and the 2015 Canadian Electrical Code

  • November 30-December 1, 2015 - Mississauga, ON
  • December 2-3, 2015 - Winnipeg, MB
  • December 7-8, 2015 - Edmonton, AB
  • December 9-10, 2015 - Richmond, BC

Transformer Testing and Maintenance

  • November 30-December 1, 2015 - Richmond, BC
  • December 2-3, 2015 - Edmonton, AB
  • December 7-8, 2015 - Mississauga, ON
  • December 9-10, 2015 - Winnipeg, MB
 
Affiliates
 
Featured Product

S&C IntelliRupter® PulseCloser

S&C Electric Company
S&C's IntelliRupter PulseCloser is a breakthrough in distribution system protection.
more...
 
Advertisement
 
Latest Buyer's Guide Companies
Sign Up Today and Receive Our FREE E- Newsletter

E-newsletter service - Exciting industry trends, technical developments, product information, forums and electrical training courses.