Electricity has been part of our lives. It has brought many things that surely have made many wonders and life would seem so hard without it.

Electricity powers our light, heating, electronic appliances such as computers and television, and a host of essential services that we take for granted.< p>

However, electricity has much more important aspects because it is a fundamental feature of all matter. Electricity is the force that holds together the molecules and atoms of all substances.

The type of electricity that is most familiar to us is electrical current. This is the flow of electrical charges through a substance called a conductor such as a metal wire. This flow happens beacuse some of the negatively charge electrons circling the nuclei of the conductor's are held loosely. The electrons can move from one atom to the next, producing and electrical current.

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