0

June 24, 2016 AT 5:55 pm

Charge Carriers: Conventional Flow vs Electron Flow, Explained by @baldengineer

conductors

While the conventional thinking is that electricity flows from positive to negative – such as in any simple battery-powered LED circuit – we know the opposite is true. But it doesn’t really matter, as explained by Bald Engineer as long as you use the same direction to analyze the entire circuit. Watch the video below for this 101 explanation on the two types of flow commonly expressed, and check out James’s Four Current Flow Myths Explained for more info.

A couple of weeks ago I wrote about four current flow direction myths. As a follow up to that popular post, I decided to dedicate this month’s AddOhms electronics tutorial video to Current Flow. In episode #19, I tackle the question of which way does current flow.

You might have heard about “conventional flow” and “electron flow.” In conventional flow, we assume that current flows from the positive voltage towards the negative voltage. In digital, the “negative voltage” is usually called ground. However, that’s not how the electrons move nor is it how they carry the charge around a circuit path.

Electron flow is the description of how electrons carry a charge. Which is the negative voltage towards the positive? This confusion is a result of Ben Franklin mistakingly identifying how electrons moved so many years ago. Yet, we have kept the “positive” and “negative” labels as they are today.

The key though is that it doesn’t matter which method you use to analyze a circuit. Electrons move in a closed path. So whether they travel from positive to negative or from negative to positive, doesn’t matter!

Above text from AddOhms #19 video notes; follow James at BaldEngineer.com for more great content.


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!


Maker Business — HAX Hardware Trends 2017

Wearables — Tidy wires are happy wires

Electronics — Coin Cell Current

Biohacking — Circuit Board Borg Leg Tattoo Sleeve

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.