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: Electrical Circuit Problem / Electric Potential Difference

  1. Feb 6, 2017 #1
    1. The problem statement, all variables and given/known data

    In the following picture, the absolute value of the difference in electric potential, between points A and B is:

    2. Relevant equations
    E =qV
    V = iR

    3. The attempt at a solution
    I have no idea where to start on this one, just started my electric circuits unit so please bare with me. Any help would be appreciated, thanks and sorry for the inconvenience.
  2. jcsd
  3. Feb 6, 2017 #2


    User Avatar
    Education Advisor
    Gold Member

    Is there any current at points A or B? If so why, if not, why not?
  4. Feb 6, 2017 #3
    Can you reduce the circuit in any way? In other words, are there 2 resistors in series that you can reduce to a single resistor, or are there 2 resistors in parallel that you can reduce to a single resistor? How much current is flowing through the 4k resistor that is connected to point A?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted