Current flow direction indication in circuit diagrams

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SUMMARY

The discussion centers on the convention of current flow direction in circuit diagrams, which indicates flow from the positive pole to the negative pole. This convention is based on historical practices established before the discovery of electrons, leading to a representation that contradicts the actual movement of electrons, which flow from negative to positive. Participants agree that this is a historical accident, and the established convention persists despite the scientific understanding of electron flow.

PREREQUISITES
  • Understanding of basic electrical concepts, including voltage and current.
  • Familiarity with circuit diagram symbols and notations.
  • Knowledge of electron theory and its implications in electrical engineering.
  • Awareness of historical context in scientific conventions.
NEXT STEPS
  • Research the historical development of electrical theory and conventions.
  • Study the differences between conventional current and electron flow.
  • Explore the implications of current flow direction on circuit analysis.
  • Learn about circuit diagram standards and best practices in electrical engineering.
USEFUL FOR

Electrical engineering students, educators, and professionals involved in circuit design and analysis will benefit from this discussion, particularly those interested in the historical context and conventions of electrical flow representation.

apurvmj
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Hi all,
I'm having a small question about current flow direction indication in circuit diagrams.
Its shown as current flow from +ve pole to -ve pole, but -ve pole has higher electron concentration (potential) & electrons flow from -ve to +ve.
Whats the logic of showing the direction of current flowing in opposite way.
Hope I have made myself clear.
Waiting for reply.
Thanks.
 
Physics news on Phys.org
It is a historical accident and now we're stuck with it.
Back when the rules for electricity flow were worked out, they didn't know about the electrons. Doesn't everyone get told about this?
 

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