Electricity

WHAT IS ELECTRICITY?

Electricity is a form of energy. Electricity is the form of electrons. All matter is made up of atoms, and an atom have a center, called nucleus. The nucleus contains positively charge particles called protons and uncharged particles called neutrons. The nucleus of an atom is surrounded by negatively charged particles called electrons. The negative charged of an electron is equal to the positive charged of a proton, and the number of electrons is usually equal to the number of protons in an atom. When the balancing forces between protons and electrons its upset by an outside force, and atom may gain or lose an electron. When electrons are lost from an atom, the free movement of these electrons constitutes an electric current
Electricity is a basic part of nature, and it is one of our most widely use form of energy

voltage:Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points. The difference in electric potential between two points (i.e., voltage) in a static electric field is defined as the work needed per unit ofcharge to move a test charge between the two points.

resistor:A resistor limits the electric current that flows through a circuit. Resistance is the restriction of current. In a resistor the energy of the electrons that pass through the resistor are changed to heat and/or light.

intensity:Electric intensity is the strength of electricfield at a point. Electric intensity at a point is defined as the force experienced. per unit positive charge at a point placed in the electric field.