Definition:Electric Current/Symbol
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Electric Current: Symbol
The usual symbol used to denote an electric current when it is necessary to treat it as a vector quantity is $\mathbf J$.
When only its scalar magnitude is being discussed, the symbols $I$ or $i$ are usually used.
Sources
- 1970: George Arfken: Mathematical Methods for Physicists (2nd ed.) ... (previous) ... (next): Introduction: Electromagnetic Theory
- 1976: Ralph J. Smith: Circuits, Devices and Systems (3rd ed.) ... (previous) ... (next): Chapter $1$: Electrical Quantities: Definitions and Laws: The International System of Units: Table $1$-$1$ Basic Quantities