Coulomb: Understanding the Fundamental Unit of Electric Charge

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    Coulomb
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Discussion Overview

The discussion centers around the concept of the coulomb, the fundamental unit of electric charge. Participants explore its definition, relationship to electrons, and its practical implications in measuring electric charge.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • One participant questions whether a coulomb is the charge on electrons or a packet of electrons, expressing confusion over the definition.
  • Another participant cites Wikipedia, stating that a coulomb is equal to approximately 6.241 × 1018 elementary charges.
  • A different participant emphasizes that the coulomb is the SI unit of charge, allowing for comparisons of relative charges between objects.
  • One participant provides the official definition, linking the coulomb to a one-ampere current flowing for one second.
  • Another participant humorously notes that the unit is named after Charles-Augustin de Coulomb, mentioning his contributions to the field.
  • One participant draws an analogy between a coulomb and a dozen, stating that a coulomb represents a specific quantity of electrons, approximately 6.25 × 1018 charges.
  • A participant expresses gratitude for the responses, indicating a growing understanding of the topic.

Areas of Agreement / Disagreement

There is no clear consensus on the definition of a coulomb, as participants present varying perspectives and explanations. Some participants agree on its relationship to electrons, while others focus on its role as a unit of measurement.

Contextual Notes

Participants reference different sources, leading to apparent contradictions in definitions. The discussion reflects varying levels of understanding and interpretation of the coulomb's significance and application.

Who May Find This Useful

This discussion may be useful for individuals seeking clarification on the concept of electric charge, particularly students or enthusiasts in physics and electrical engineering.

Stripe
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Ok not 100% if this is right place but it's not homework so...

What the hell is a coulomb I've looked everywhere and everything seems to be different.

So is it the charge on electrons?

Or is it a packet of electrons? 6 million million million electrons = coulomb?!??

Sorry if this seems dumb :(
 
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Yeah I've checked wiki but it seems to contradict other material I've read... how would you describe it?
 


The Coulomb is the SI unit of charge. It is just a standard against which we can compare the relative charges of difference objects; just like we might say this object has a mass of 1kg, and this object has a mass of 3kg, we could say one object has 1 coulomb (C) of charge, and another has 10C. It has meaning in the sense that we can compare the relative charges from object to object.
 


The official definition of the coulomb is, "the amount of charge carried past a point in a wire by a one-ampere current in one second."
 


Actually COULOMB was a famous scientist ! (maybe was a justice also he he he as long as one of his invention is known as COULOUMBs LAW . . . kidding!) the unit of charge is entitled with his name !
When you send 1A current though a conductor for 1 second then the amount of flow in any width of it is 1 COULOMB!

and ELECTRIC CURRENT means the FLOW OF ELECTRON!

q = I t
where q = charge
I = Electric Current
t = Time

and always q = n e
where, e = charge of electron
n = any full number
 


OK mate... the coulomb is a measure of electrons in the same way that a dozen is a measure of eggs.
When anyone refers to coulombs they are talking about a quantity of electrons.

If you buy a dozen eggs you know you are getting 12 eggs.
If you have 1 coulomb of of charges you have approx. 6.25 x 1018 charges.

In terms of electricity a coulomb is the number of electrons.
 


Ok so i THINK i have it i really appreciate all the replies guys :D i owe you all!
 

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