For example, the connecting leads of a bipolar junction transistor, (BJT) are identified as E (emitter), B (base), and C (collector). Thus in circuit diagrams and schematics, graphical symbols identify and represent electrical and electronic devices and show how they are electrically connected together while drawing lines between them represents the wires or component leads.Ī the connecting leads or pins of a component in a schematic diagram can be identified using letters or abreviations.
Graphical symbols not only identify a components position but the type of electrical element too, whether its resistive, inductive, capacitive, mechanical, etc.
Basic electrical and electronic graphical symbols called Schematic Symbols are commonly used within circuit diagrams, schematics and computer aided drawing packages to identify the position of individual components and elements within a circuit. Circuit layouts and schematic diagrams are a simple and effective way of showing pictorially the electrical connections, components and operation of a particular electrical circuit or system.
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