Current Electricity

Write down the following words and their definitions

an electrical charge in motion.

It consists of a flow of negatively charged electrons from atom to atom through a conductor in an electrical circuit.

The external force that causes the electron current flow of electric charge is called the electromotive force (emf) or voltage.

Examples of current electricity are:

1) starting a car

2) turning on a light

3) cooking on an electric stove

4) watching TV

5) shaving with an electric razor

6) playing video games

7) charging a cell phone

• Direct current (DC) is an electric current that is uni-directional, so the flow of charge is always in the same direction. 

• As opposed to alternating current, the direction and amperage of direct currents do not change. It is used in many household electronics and in all devices that use batteries

• It is also used to:

• charge batteries, like laptops and cell phones

• They come with an AC adapter that converts alternating current to direct current