Final answer:
A ladder diagram is an electrical diagram arranging circuit wires in ordered rows with components wired in parallel. This allows for an equal voltage across each component and is depicted as a ladder where each rung represents a component and the potential difference is indicated.
Step-by-step explanation:
An electrical diagram that arranges wires of a circuit into order rows is called a ladder diagram. In a ladder diagram, components such as resistors are wired in parallel, ensuring that each component receives an equal voltage from the power source. This is depicted as a ladder-shaped diagram where each component, including potential sources of resistance like conductors, is placed on a 'rung' of the ladder. The potential difference, or the difference in electric potential between two points in an electric circuit, is measured in volts and is important for understanding how voltage is distributed in a circuit. A typical electric circuit includes a closed path for current to flow, provided by conductors connecting a load to the terminals of a battery, with the red parallel lines often symbolizing the battery, straight lines for conducting wires, and a zigzag for the load or resistor.