Calculating Current Through a Parallel Resistor Circuit: Help Needed

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SUMMARY

The discussion focuses on calculating the current through a resistor in a parallel circuit with two other unequal resistors. Given the voltage (E = 10V) and resistances (R1 = 5Ω, R2 = 10Ω, R3 = 15Ω), the equivalent resistance (Req) is calculated as 0.533Ω, leading to a total current (Inet) of 18.76A. To find the current through R1, Ohm's Law (I = V/R) is applied, emphasizing that the voltage across each resistor in parallel remains constant at 10V.

PREREQUISITES
  • Understanding of Ohm's Law (I = V/R)
  • Knowledge of parallel resistor circuits
  • Ability to calculate equivalent resistance
  • Familiarity with basic electrical concepts
NEXT STEPS
  • Learn how to calculate current through individual resistors in parallel circuits
  • Study the concept of equivalent resistance in more complex circuits
  • Explore Kirchhoff's laws for analyzing electrical circuits
  • Investigate the impact of resistor values on total current in parallel configurations
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Electrical engineering students, hobbyists working on circuit design, and anyone looking to deepen their understanding of parallel resistor calculations.

jenzao
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How do you find the current through a resistor that is in parallel with 2 other nonequal resistors? I totally forgot how to do this.
as an example, if

E = 10V
R1= 5ohm
R2 = 10ohm
R3 = 15ohm

So, I know that 1/Req = 1/R1 + 1/R2 + 1/R3 = .533ohm

and also know Inet = 10V/.533ohm = 18.76A

but how do i get current going through R1?


please help, and thanks


PS --this is NOT a homework question even though i post a lot of HW questions
 
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You have the voltage and resistance, just use Ohms law.
 


So you use ohms law for each resistor and doesn't matter if its in parallel or in series with other resistors? (thats what's confusing me)
 


Hint: You have too much information.
 

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