Electrical charge flow past a given point per unit of time.
Electrical current that flows in only one direction.
Electrical current that oscillates forward and backwards.
The ratio of electric potential energy to electric charge at a particular spot in an electric field. It is often referred to as voltage since it is measured in volts.
Basic law that describe current electricity; Voltage equals current times resistance.
Resistance from the processes inside a voltage source; reistance due to the battery itself.
A circuit where the components form one continuous loop. The current is constant throughout.
A circuit where each component is connected to form its own separate independent branch. The voltage is constant throughout.
A safety device designed to melt or disconnect a circuit after a predetermined amount of current is exceeded.
A restatement of conservation of charge; the current going into a junction must equal the current going out of the junction.
A restatement of conservation of energy; the sum of all voltages in the elements of a loop is zero.