Electricity, Importance of Electricity, Electric Current, and Resistance
Electricity is a form of energy resulting from the existence of charged particles known as electrons or protons, either statically as an accumulation of charge or dynamically as a current.
Electricity is important because it allows us to use machines and electronic devices.  The entire world runs on electricity and energy, making it a crucial factor in the making the world go round.
Electric current is the rate of charge flow.  It is measured in Coulombs/second also known as Amperes. In most currents, the resistance to current flow is constant, therefore the current in the circuit is related to voltage and resistance.