Does a Resistor Affect Current in a Circuit?

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SUMMARY

A resistor in a circuit directly affects the current flow according to Ohm's Law, which states that current (I) is inversely proportional to resistance (R) when voltage (V) is constant. As resistance increases, the current decreases, and conversely, a decrease in resistance results in an increase in current. This relationship is fundamental in electrical engineering and physics, illustrating how resistors dissipate energy without altering the charge of the particles flowing through them.

PREREQUISITES
  • Understanding of Ohm's Law (I = V/R)
  • Basic knowledge of electrical circuits
  • Familiarity with resistors and their function
  • Concept of voltage and current in electrical systems
NEXT STEPS
  • Study the principles of Ohm's Law in detail
  • Explore the characteristics of different resistor materials
  • Learn about series and parallel resistor configurations
  • Investigate the impact of temperature on resistance
USEFUL FOR

Students in physics or electrical engineering, educators teaching circuit theory, and hobbyists building electronic projects will benefit from this discussion.

lha08
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Homework Statement


I'm trying to understand how does a resistor in a circuit affect the current...like this is what I'm getting...when the resistance of a circuit increases, the current passing through it decreases? And its the same for the opposite; as the resistance decreases, there is more current passing through it...Is this right? Like I can't really picture why exactly this happens. Like i though that the particles don't lose charge as they pass through the resistor, just potential energy, but how does it affect current...??
Maybe the current does not change?



Homework Equations





The Attempt at a Solution

 
Last edited:
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Resistors are simply made using high-resistivity materials.
http://en.wikipedia.org/wiki/ResistorAlso this thread does not belong here, it belongs in the appropriate physics/engineering forum.
 

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