Introduction: Conventional Current Vs Electron Flow

PLAY VIDEO

To see more from me, subscribe to Simply Electronics on YouTube.

Leave your comments or video suggestions here or on YouTube. and they may be considered for a video.

An explanation of conventional current vs Electron Flow. Two ways of representing current flow in a circuit.

Electron Flow (Electrons flowing from negative to positive) is the True correct way from a physics stand-point. However, Since the early days of discovery, people thought current flowed in the opposite direction (From Positive to Negative). Because of this, Symbols, and Circuit Diagrams have always been drawn to suit Conventional current flow.

This is why all my future videos will use conventional current flow, because the symbols for components where polarity matters can become confusing if conventional current flow is not used.

All videos I have done up to this point are still 100% correct. The only change is the direction of current to ensure symbols properly match the representation.

Comments

author
russ_hensel (author)2016-07-09

"Electron Flow (Electrons flowing from negative to positive) is the True correct way from a physics stand-point." Not quite, physics equations almost always assume conventional current, for example most statements of Maxwell's Equations. Saying electron flow is the correct way is similar to saying they got the charge on the electron wrong, it should be positive. Think about it.

author
Sutty5 (author)russ_hensel2016-07-09

By physics stand-point I don't mean the study and notation of physics and equations, I simply mean from a physics stand-point itself, the way electrons actually operate in the physical world, Not how they are noted in physics equations. As you stated, equations "assume" conventional current. My only point being that physically, electrons move in the opposite direction.

author
russ_hensel (author)Sutty52016-07-09

That is correct in situations where the current is carried by electrons, which is usually the case in metallic and semiconductors ( except there is also the concept of the positive "hole" ). In solutions and plasma the particle carrying charge may have a positive charge. If you believe in displacement current there is no charge at all.

About This Instructable

354views

7favorites

Bio: Simply Electronics YouTube is a channel created to Inspire, Educate and Entertain new and experienced Electronics Enthusiasts. Join me in the exploration of the world ... More »
More by Sutty5:What Is an LDR? (Light Dependant Resistor)Using Zener Diodes: Voltage Regulator (Part 1 and 2)Potentiometers?
Add instructable to: