VsubA
VsubA is a notation used in electrical engineering and circuit theory to denote the voltage at a specific node, labeled A, in an electrical circuit. It represents the electric potential of node A relative to a chosen reference node, typically ground. In many texts, this quantity is written as V_A or V_sub_A, with VsubA specifically emphasizing the subscripted node.
The value of VsubA depends on where the reference node is defined. If the reference is ground,
In circuit analysis, VsubA is treated as a variable to be determined. It is commonly solved using
VsubA is a convenient label on schematics and in equations to track the potential at a particular
See also: node voltage, reference node, nodal analysis, Kirchhoff's laws.