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!

Artificial Magnetic Fields — Electromagnetism (Physics Gr12)

  1. Dec 14, 2014 #1
    1. The problem statement, all variables and given/known data
    Two parallel conductors each carry 10 A of current in the same direction.
    a) What is the magnetic field strength at the midpoint between these wires? (answer = 0T)
    b) What is the field strength at the same point if the current ran in opposite directions? (answer = 4.0x10^-4T)

    I am very confused and any help would be greatly appreciated
     
  2. jcsd
  3. Dec 14, 2014 #2

    CWatters

    User Avatar
    Science Advisor
    Homework Helper

    Are you familiar with the right hand rule..

    right_hand_rule.jpg

    Make some drawings of the magnetic field with two wires.
     
  4. Dec 14, 2014 #3
    Yes I am familiar with all three of them
     
  5. Dec 15, 2014 #4

    CWatters

    User Avatar
    Science Advisor
    Homework Helper

    Then I suggest drawing two wires "end on" and adding circular B field lines around each. See what happens in the middle.
     
  6. Dec 16, 2014 #5
    Thanks, got it
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted