1. Not finding help here? Sign up for a free 30min 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!

Equivalent Resistance

  1. Feb 17, 2010 #1
    1. The problem statement, all variables and given/known data
    Three resistors with values of 7.0 Omega, 12 Omega, and 16 Omega are connected in series in a circuit with a 9.0 V battery.
    a) What is the total equivalent resistance?
    b) What is the current in each resistor?
    c) At what rate is energy delivered to the 16 Omega resistor?
    2. Relevant equations

    I= V/Rs
    P = V^2 /R ???

    3. The attempt at a solution
    I got "a" but missed "b". i used the first equation and got .26 then divided that by 3 but I guess that's not what you do. For "c" i really have no clue. help!!!
  2. jcsd
  3. Feb 17, 2010 #2


    User Avatar
    Homework Helper

    In series connection the current is the same in all the resistances.
    For "c", the power can also be written as P = I^2*R.
  4. Feb 17, 2010 #3
    so for b the answer would be just .26 and not divide by 3?
  5. Feb 18, 2010 #4


    User Avatar
    Homework Helper

  6. Feb 18, 2010 #5
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Equivalent Resistance
  1. Equivalent Resistance (Replies: 8)

  2. Equivalent resistance (Replies: 9)

  3. Equivalent resistance (Replies: 8)

  4. Equivalent Resistance (Replies: 15)

  5. Equivalent resistance (Replies: 3)