Types of Electricity

There are two types of electricity: static and dynamic.
Dynamic electricity can be either direct current (DC) or alternating current (AC). 

• STATIC ELECTRICITY
  When two non conductors - such as a silk cloth and glass rod - are rubbed together, some electrons are freed. Both materials become electrically charged. One is lacking electrons and is positively charged. The other has extra electrons and is negatively charged. These charges remain on the surface of the material and do not move unless the two materials touch or are connected by a conductor. Since there is no electron flow, this is called static electricity.

• DYNAMIC ELECTRICITY
  When electrons are freed from their atoms and flow in a material, this is called dynamic electricity. If the free electrons flow in one direction, the electricity is called direct current (DC). This is the type of current produced by the battery of the vehicle. If the free electrons change direction from positive to negative and back repeatedly with time, the electricity is called alternating current (AC).This is the type of current produced by the alternator of the vehicle. It is changed to DC for powering the electrical system of the vehicle and for charging the battery.

Electrical Circuits
The basic definition of electrical circuits of the Vehicle, A power source (battery or alternator) produces voltage, or electrical potential. Conductors (wires, printed circuit boards) provide a path for current flow. Working devices, or loads (lamps, motors), change the electrical energy into another form of energy to perform work.

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