What is an RS485 Communication Network?
RS485 is a two wire data communication system where both wires are considered the carrier of the signals. As such, there is no ground/return. Two, three, four, up to dozens of devices ...
Is Conduit Ground Good Enough for Electronics?
-- The National Electrical Code (NEC) is concerned with fire safety and with electrical safety. The electronic technician is concerned with those issues, but the electronic technician is also concerned with signal transmission ...Read More
How Does One Connect RS232?
-- So two pieces of equipment can send data to each other, RS232 carries the data. When connecting the equipment using RS232, there's guessing the RS232 is wired correctly, and then there's knowing ... Read More
What is an Arc Flash?
-- Burning, blinded, deafened, an electrician is thrown across the room; having reached into a live electrical panel, all he did was to drop... Read More
What Does E=IR Really Mean?
-- If it isn't just a word, and it isn't really something to be memorized in order to pass a test, what do the letters in Ohm's Law really mean?... Read More
What is a Flyback Diode?
-- Someone Thinks the Flyback Diode is Important. Manufacturers all over the world spend good money installing these diodes, they must think they're ... Read More
Douglas Krantz | Describing How It Works
I'll Send You the
On this website, most references to electrical flow are to the movement of electrons.
Here, electron movement is generally used because it is the electrons that are actually moving. To explain the effects of magnetic forces, the movement of electrons is best.
Conventional current flow, positive charges that appear to be moving in the circuit, will be specified when it is used. The positive electrical forces are not actually moving -- as the electrons are coming and going on an atom, the electrical forces are just loosing or gaining strength. The forces appear to be moving from one atom to the next, but the percieved movement is actually just a result of electron movement. This perceived movement is traveling at a consistent speed, usually around two-thirds the speed of light. To explain the effects of electrostatic forces, the movement of positive charges (conventional current) is best.
See the explanation on which way electricity flows at www.douglaskrantz.com/