key term - Potential Difference

Definition

Potential difference refers to the difference in electric potential energy per unit charge between two points in an electric circuit. It is measured in volts (V) and represents the amount of work done to move a unit positive charge from one point to another.

Related terms

Electric Current: Electric current is the flow of electric charge through a conductor, such as a wire. It is measured in amperes (A) and represents the rate at which charges are moving.

Resistance:

Resistance is a property of materials that opposes the flow of electric current. It is measured in ohms (Ω) and determines how much current can flow through a circuit for a given potential difference.

Ohm's Law: Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to its resistance. It can be expressed mathematically as I = V/R, where I is the current, V is the voltage, and R is the resistance.