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Direction of current?

  1. Apr 1, 2010 #1
    1. The problem statement, all variables and given/known data

    Indicate the current flow across the resistor R. Note that B is uniform over the entire region where it is shown. Choose from the following answers:

    1. Current will flow from right to left.
    2. Current will flow from left to right.
    3. No current will flow.

    http://j.imagehost.org/view/0639/Untitled [Broken]
    2. Relevant equations

    Lenz Law / Right hand rules

    3. The attempt at a solution

    case 1: left to right? thumb in direction of B and curl fingers in I
    case 2: Left to right? same as above, but extra RHR to determine direction of B.
    case 3: not sur, would it even induce a current?
    case 4:left to right - Lenz law
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Apr 2, 2010 #2
    Shouldn't the direction for all of these be left to right?

    I tried using Lenz Law on all of the above cases andd thats what I got
     
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