What symbol is used to denote a battery in circuit diagrams?

The symbol used to denote a battery in circuit diagrams is represented by two parallel lines, where one line is longer than the other. This design reflects the positive and negative terminals of the battery. In circuit diagrams, the longer line typically indicates the positive terminal, while the shorter line represents the negative terminal. This standard representation helps anyone reading the circuit diagram to easily understand the components and their connections. Understanding these symbols is crucial for analyzing and constructing electronic circuits effectively, as clear visual communication is essential in electrical engineering.