What do people mean when they say "Volts of charge"?

  • Context: Undergrad 
  • Thread starter Thread starter rtareen
  • Start date Start date
  • Tags Tags
    Charge Mean
Click For Summary
SUMMARY

The discussion centers on the common misunderstanding of the term "volts of charge" in popular media, particularly regarding static electricity. Participants highlight that while charge is measured in Coulombs, volts represent electric potential, leading to confusion when laypeople use the term inaccurately. The conversation emphasizes that when individuals refer to "volts," they likely mean the potential generated by static charge, often without precise scientific context. The need for clarity in communication about electrical concepts is underscored, particularly in non-scientific discussions.

PREREQUISITES
  • Understanding of basic electrical concepts, including voltage and charge.
  • Familiarity with Coulombs and volts as units of measurement.
  • Knowledge of electric fields and their relationship to voltage.
  • Awareness of the differences between scientific terminology and popular usage.
NEXT STEPS
  • Research the relationship between electric potential and distance in electrostatics.
  • Explore the concept of electric fields and how they relate to voltage measurements.
  • Study the differences between charge, voltage, power, and energy in electrical systems.
  • Investigate common misconceptions in the media regarding scientific terminology.
USEFUL FOR

Individuals interested in electrical engineering, educators explaining static electricity, and anyone seeking to improve their understanding of electrical terminology in popular media.

rtareen
Messages
162
Reaction score
32
Quote 1: "[He] accumulated an estimated 30,000 volts of static charge simply by walking around his home town in inadvisably large quantities of non-natural tailoring."
Quote 2: "A man left a trail of scorched carpet and melted plastic after static on his clothes built up to a 40,000 volt charge."

This is confusing because charge is measured in Coulombs and volts measure electric potential. I'm pretty sure since voltage is proportional to 1/r then if there's any charge on him the voltage is infinite. And actually it would be infnitely negative. The farther away you move from him the higher the voltage. So from what distance are they measuring these volts? Or do they have no clue what they're talking about. What does it usually mean when a layman mentions volts? Do they mean the electric field which is Volts per meter?
 
Physics news on Phys.org
Heres another one:

"The [fire authority] wisely impounded Clewer's jacket, which continues "to give off voltage.""
 
You see that sort of thing repeatedly in the popular press. Competent scientific editors died out shortly after the dinosaurs and even the incompetent ones have been laid off due to the internet eating printed media's lunch.

The internet, of course, has never even HAD competent scientific editors.
 
  • Like
  • Haha
Likes   Reactions: Bystander, rtareen and Astronuc
Isn't it obvious what they mean? "Enough charge to generate a potential of 20,000 volts".

And if you don't like less than perfect scientific accuracy in non-scientific news, you must really hate "Senator Blowhard has a lot of momentum going into this year's race."
 
  • Like
Likes   Reactions: russ_watters
Vanadium 50 said:
Isn't it obvious what they mean? "Enough charge to generate a potential of 20,000 volts".

And if you don't like less than perfect scientific accuracy in non-scientific news, you must really hate "Senator Blowhard has a lot of momentum going into this year's race."

Ok, if that's what they mean then where is that potential measured from? Because it varies with distance. Or is it some kind of potential difference between the clothes and the atmosphere? Its still not very clear what they mean even if you take it like that. I just want to know what regular people are actually talking about when they mention volts.
 
phinds said:
You see that sort of thing repeatedly in the popular press. Competent scientific editors died out shortly after the dinosaurs and even the incompetent ones have been laid off due to the internet eating printed media's lunch.

The internet, of course, has never even HAD competent scientific editors.
But what do you think they mean by it? Do you think they're talking about the electric potential set up by the charge or maybe the electric field? I want to know what they mean when they say things so I can maybe understand what theyre trying to say.
 
rtareen said:
But what do you think they mean by it? Do you think they're talking about the electric potential set up by the charge or maybe the electric field? I want to know what they mean when they say things so I can maybe understand what theyre trying to say.
OK, so you want some random guy on an internet forum (me) to make a guess at what some other random guy (the author) meant when he (the other guy) used incredibly sloppy language to describe something?

Good luck with that.
 
  • Like
Likes   Reactions: BillTre and Vanadium 50
Vanadium 50 said:
Isn't it obvious what they mean? "Enough charge to generate a potential of 20,000 volts".
Agreed. I hear fingernails on a chalkboard when they confuse power and energy, but this one is more just slightly sloppy wording than truly wrong science. Doesn't really bother me.
 
rtareen said:
Ok, if that's what they mean then where is that potential measured from? Because it varies with distance. Or is it some kind of potential difference between the clothes and the atmosphere? Its still not very clear what they mean even if you take it like that. I just want to know what regular people are actually talking about when they mention volts.
Well, what would you measure it from? I'd measure it from the ground it was generated from or the doorknob it discharged to.
 
  • Like
Likes   Reactions: Vanadium 50

Similar threads

  • · Replies 24 ·
Replies
24
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 15 ·
Replies
15
Views
2K
  • · Replies 17 ·
Replies
17
Views
4K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 17 ·
Replies
17
Views
9K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 22 ·
Replies
22
Views
8K
  • · Replies 16 ·
Replies
16
Views
5K