Timeline for Why is the polarity of the \$3 \ \text{V}\$ source necessary to calculate the current flowing through the \$8 \ \Omega\$ resistor?
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Nov 25, 2021 at 15:44 | comment | added | WhatRoughBeast | About the only people who are even remotely interested in "physical direction" are those who work with particle beam accelerators and people running welding machines. Oh, and people designing solid-state devices, too. | |
| Nov 25, 2021 at 14:19 | comment | added | The Pointer | @SpiRail Ok, thanks for the clarification. | |
| Nov 25, 2021 at 13:19 | comment | added | SpiRail | I've not heard anyone say "physical current" outside of school textbooks. You don't need to say "physical" and "conventional". Current is always (+to-), Just like Voltage for that matter. Then use "Election flow" for the cases when its really necessary do describe what happens at the atomic scale. (i.e.: physics of junctions and batteries, e.t.c.) | |
| Nov 25, 2021 at 11:06 | vote | accept | The Pointer | ||
| Nov 25, 2021 at 11:02 | comment | added | The Pointer | Oops, that was a typo: it should be "physical direction of the current (- to +)" and "conventional direction of the current (+ to -)." Yes, it seems I misinterpreted your illustration. | |
| Nov 25, 2021 at 10:49 | comment | added | SpiRail | @ThePointer. Yes elections flow in the opposite direction to the current. Its best to just always go with the + to - current flow when talking about things at this scale. Many electrical engineers wish they could go back in time and fix the current flow direction: xkcd.com/567 | |
| Nov 25, 2021 at 10:46 | history | edited | SpiRail | CC BY-SA 4.0 |
added 557 characters in body
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| Nov 25, 2021 at 10:46 | comment | added | Justme | @ThePointer current flows identically. You are now mixing that with flow of electrons which is opposite to current. | |
| Nov 25, 2021 at 10:42 | comment | added | The Pointer | In your illustrations, you're showing the physical direction of the current (+ to -), but the conventional direction of the current (- to +), as used in electronics, would go in the opposite direction, right? | |
| Nov 25, 2021 at 10:38 | history | answered | SpiRail | CC BY-SA 4.0 |