FInding the current through a resistor in parallel with 2 other (nonequal) resistors

  • Thread starter jenzao
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  • #1
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Main Question or Discussion Point

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 alot of HW questions
 

Answers and Replies

  • #2
Integral
Staff Emeritus
Science Advisor
Gold Member
7,198
55


You have the voltage and resistance, just use Ohms law.
 
  • #3
48
0


So you use ohms law for each resistor and doesnt matter if its in parallel or in series with other resistors? (thats whats confusing me)
 
  • #4
4,662
5


Hint: You have too much information.
 

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