How Does Resistance Affect Current in Parallel Circuits?

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SUMMARY

This discussion focuses on the relationship between resistance and current in parallel circuits, specifically addressing the scenario where two legs of a parallel circuit carry similar current. It concludes that the resistances in each leg are likely similar if the currents are alike. Additionally, the conversation covers a practical application involving Ohm's Law, where a 3V battery and a 15Ω resistance generate a current of 0.2A in a video game circuit. The importance of correctly applying the formula I = V/R is emphasized to avoid confusion and ensure clarity in calculations.

PREREQUISITES
  • Understanding of Ohm's Law (I = V/R)
  • Basic knowledge of parallel circuits
  • Familiarity with electrical resistance and current concepts
  • Ability to interpret circuit diagrams and calculations
NEXT STEPS
  • Study the characteristics of parallel circuits in detail
  • Learn about the implications of resistance in circuit design
  • Explore practical applications of Ohm's Law in electronics
  • Investigate common mistakes in electrical calculations and how to avoid them
USEFUL FOR

Students in electrical engineering, educators teaching basic circuit theory, hobbyists working with electronics, and anyone seeking to improve their understanding of current and resistance in parallel circuits.

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ok this is a simple question and i have the idea but just not 100% sure
If two legs of a parallel circuit have about the same about amount of current, what can you say about the resistance of each of these legs?


My answer is that both legs most probable have the same object(resistors), there resistance would be very alike

any corrections?

Another question was


Paul’s Super Marco video game uses batteries that produce 3 V. If the circuitry produces a resistance of 15 Ω, how much current is generated in the game?

I came up with
I=v/r
I=3/15
.2=3/15
.2 current generated in game
but...
on the rubric for the question it says
Reversing Ohms and Volts in formula (15/3)=10 points
im not quite sure what they mean by that any help would be great
Thanks!
 
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Your solution looks good.
Maybe the rubric means you would get or lose 10 points for writing 15/3 instead of 3/15.

It would be a very good habit to get into to write your solution this way:
I = V/R = 3/15 = 0.2
So easy to follow, you won't get mixed up and your marker will enjoy your work!
 


o ok thank you for your help. yeah i was confused about the rubric and what it meant thanks for the help.
 

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