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!

Induced Voltage created on a loop entering a magnetic field

  1. Apr 13, 2012 #1
    1. The problem statement, all variables and given/known data

    A 0.69m long and 0.69m wide loop is moved at a constant velocity of 0.81m/s from a region of zero magentic field into a perpendicular constant magnetic field of 0.21T. Calculate the magnitude of the induced voltage in the loop while it is entering the B-field

    2. Relevant equations
    EMF=-N*A*B/T


    3. The attempt at a solution
    I can plug in the numbers for the number of loops N (1), the area A (LxW), and the magnitude of the field B (.21T), but how do I find the time from just knowing the velocity?
     
  2. jcsd
  3. Apr 13, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    welcome to pf!

    hi allison20! welcome to pf! :smile:
    no, it's -∂/∂t (NAB) :wink:

    (ie -∂/∂t (magnetic flux) )
     
  4. Apr 13, 2012 #3
    If you know the velocity and dimensions you should be able to calculate area swept out per second and therefore flux change per second
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Induced Voltage created on a loop entering a magnetic field
Loading...