Define the term of Voltage in an Electrical circuit,Voltage is electrical pressure, a potential
Define the term of Current in an Electrical circuit,Current is electrical flow moving through a wire. Current is a measure of the rate at which charge carriers flow. The standard unit is the ampere.
Define the term of Resistance in Electrical circuit,Resistance opposes current flow. It is like electrical "friction." This resistance slows the flow of current. Every electrical component or circuit has resistance. The standard unit of resistance is the (ohm).