Defining Capacitance: Is Charge Stored per Unit Volt Accurate?

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    Capacitor Definition
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Discussion Overview

The discussion revolves around the definition of capacitance, specifically whether it can be accurately described as the charge stored per unit volt. Participants explore different definitions and interpretations of capacitance and its relation to potential difference.

Discussion Character

  • Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions if describing capacitance as charge stored per unit volt is incorrect, noting a discrepancy with their prior learning.
  • Another participant cites their textbook, which defines capacitance as charge stored per unit potential difference (pd), and seeks clarification on whether this aligns with the charge needed to cause one unit pd in a circuit.
  • A follow-up post reiterates the textbook definition and asks for clarification on the term "pd."
  • A participant clarifies that "pd" stands for potential difference, which is measured in volts.

Areas of Agreement / Disagreement

Participants express differing interpretations of capacitance and its definitions, indicating that there is no consensus on the matter.

Contextual Notes

There are unresolved questions regarding the terminology used (e.g., potential difference vs. volt) and how these definitions relate to each other. The discussion reflects varying levels of understanding and reliance on different sources.

LanguageNerd
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Would it be wrong to describe Capacitance as being the charge stored per unit volt?

I have found on the internet that the definition of a Farad is the charge needed to cause one unit volt. Which means that the definition of Capacitance should surely be the same because the internet definition seems to be completely different to what I've previously learnt, no?

Thanks for any help in advance.
 
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In fact, my textbook actually describes the capacitance of a capacitor as being the charge stored per unit pd. Is this the same as the charge needed to cause one unit pd in the circuit?
 
LanguageNerd said:
In fact, my textbook actually describes the capacitance of a capacitor as being the charge stored per unit pd. Is this the same as the charge needed to cause one unit pd in the circuit?
It isthe same, but what is a pd?
 
My apologies, I meant volt
 
Thank you by the way!
 
pd = potential difference, which is what the volt unit measures.
 

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