Total resistance and fractions.

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SUMMARY

The discussion centers on calculating total resistance in parallel circuits, specifically using the formula 1/total resistance = N/sum of resistances. Participants clarify that with two 2-ohm resistors in parallel, the total resistance simplifies to 1 ohm, as shown in the equation 1/total = 2/1. The confusion arises when adjusting resistor values, leading to questions about whether to include certain fractions in calculations. The consensus emphasizes the importance of correctly applying the formula to avoid miscalculations.

PREREQUISITES
  • Understanding of Ohm's Law
  • Knowledge of parallel circuit configurations
  • Familiarity with resistance calculations
  • Basic algebra skills for manipulating equations
NEXT STEPS
  • Study the principles of parallel circuits in electrical engineering
  • Learn how to derive total resistance for multiple resistors in parallel
  • Explore advanced topics in circuit analysis, such as Thevenin's and Norton's theorems
  • Practice solving problems involving different resistor values and configurations
USEFUL FOR

Electrical engineering students, hobbyists working with circuits, and anyone seeking to deepen their understanding of resistance in parallel circuits.

Nuklear
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I'm trying to understand how fractions relate in total resistance. You have parrell circuits. Each one has a 2 ohm resistor on it. FOr if you go by the law
1/total resistance = N/sum of resistances. SO that gives us 1/total=2/1

It we make the 2 a 1 that means the 1 becomes 1/2. SO that means Total=1/1/2. But I did and equation and the total should equal 2. SO do I just avoind the 1 and put 2 or do I include it in 1/2?
 
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Whew baby. I moved this to the homework forums. Let me think about an answer...
 
Last edited:
Nuklear said:
I'm trying to understand how fractions relate in total resistance. You have parrell circuits. Each one has a 2 ohm resistor on it. FOr if you go by the law
1/total resistance = N/sum of resistances. SO that gives us 1/total=2/1

It we make the 2 a 1 that means the 1 becomes 1/2. SO that means Total=1/1/2. But I did and equation and the total should equal 2. SO do I just avoind the 1 and put 2 or do I include it in 1/2?

Tell you what, Nuklear, repost this question in the homework forum using the Homework forums posting template, and I'll take care of the cleaning up the duplicate post.
 
Last edited:

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