Seudónimo Seudónimo
  • 23-02-2018
  • Physics
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Why is current a scalar quantity?

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skyluke89
skyluke89 skyluke89
  • 04-03-2018
Despite current has a magnitude and a direction, like vectors, it is a scalar because it doesn't obey laws of vector addition. For instance, if we  consider a junction of [tex]90^{\circ}[/tex] in a circuit, and two currents entering this junction, we know that the resultant current is just the algebraic sum of the two currents, not the vector sum, so it is not a vector quantity.
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