Relationship between charge carriers per unit volume and resistance

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Discussion Overview

The discussion revolves around the relationship between the number of charge carriers per unit volume and electrical resistance, exploring concepts related to current, drift velocity, and the implications of these relationships in electrical circuits.

Discussion Character

  • Conceptual clarification
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant questions the concept of inverse proportionality, suggesting that more charge carriers should lead to increased collisions and thus higher resistance.
  • Another participant asserts that an increase in charge carriers results in decreased resistance, prompting a discussion on whether this aligns with the definition of inverse proportionality.
  • A participant expresses confusion about how increased charge carriers can reduce resistance, linking it to the ability to transfer charge.
  • There is a query about the relationship between resistance and drift velocity, with one participant suggesting that lower resistance correlates with higher drift velocity.
  • One participant explains that low resistance allows for higher current flow, implying that more charge carriers lead to lower resistance, though they acknowledge this is a simplified explanation.
  • A follow-up question is raised about the relationship between drift velocity and resistance, suggesting that lower resistance allows charged particles to move faster.

Areas of Agreement / Disagreement

Participants express confusion and differing interpretations regarding the relationship between charge carriers and resistance, indicating that multiple competing views remain without a clear consensus.

Contextual Notes

Participants have not fully resolved the implications of increased charge carriers on resistance and drift velocity, and there are varying interpretations of the terms used in the discussion.

tobytoby123
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Why is the number of charge carriers per unit volume is inversely proportional to resistance?If there is more charges carrier, it doesn't increase the collision between free electron which causes in increase of resistance?sorry for my unclear concept of Electricity circuit.I hope there will be someone to help.:smile:
 
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Are you confident about what is meant by 'inversely proportional'?
More charge carriers will reduce resistance... do you see it?
 
when the number of charge carrier per unit volume increase, the resistance decrease.Is that means inversely proportional?I don't understand why more charge carrier will reduce resistance @@ because it helps transferring charge?sorry i am really confused.
 
Also, is the lower the resistance, the higher the Drift Velocity?this also makes me confused.
 
Low resistance means that a high current can flow.
Current is the amount of charge (charge carriers) flowing per second so basically more charge carriers means more current which means LOW resistance.
This is a very much simplified explanation... hope it helps
 
thx very much:)it helps a lot:)but if higher the drift velocity, is that mean low resistance?because if low resistance, the charged particles can pass through faster.
 

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