1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Voltage, Resistance, and Current chart

  1. Dec 1, 2012 #1
    1. The problem statement, all variables and given/known data
    I have a chart here:

    2. Relevant equations

    I = V/R

    3. The attempt at a solution

    [itex]I_{1} = \frac{24.0 V}{8.0 V} = 3.00 A[/itex]

    [itex]R_{1} = \frac{8.00 V}{3.00 A} = 2.67 Ω[/itex]

    I'm stuck at how to progress on filling this up any further. Any hints?

    Thanks :)
  2. jcsd
  3. Dec 1, 2012 #2


    User Avatar

    Staff: Mentor

    You've specified V/V for I1. That's not Ohm's law.

    Start by using KVL around the loop, treating the R2||R3 combination as a single item (maybe call it "Rp"); what's the potential drop across it?
  4. Dec 1, 2012 #3
    Oops, my bad, should have noticed that.

    What's KVL?
  5. Dec 1, 2012 #4


    User Avatar

    Staff: Mentor

    KVL is Kirchhoff's voltage law; the sum of the potential changes around a closed path is zero.
  6. Dec 1, 2012 #5
    Oh, ok, we haven't covered that yet in my text.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook