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: Magnitude of Magnetic force on Wire

  1. Oct 24, 2011 #1
    An isolated segment of wire of length L=4.50 m carries a current of magnitude i=35.0 A at an angle theta=50.3 degrees with respect to a constant magnetic field with magnitude B= 6.70E-2 T. What is the magnitude of the magnetic force on the wire?
    a) 2.66 N
    b) 3.86
    c) 5.60 N
    d) 8.12 N
    e) 11.8 N
    What I did was:
    =(35.0A)(4.50m)*( 6.70E-2T * sin(50.3 degrees))
    I got 8.12 N but I checked on the back of the book and it says that the answer is (e) but I dont know how to get that.
  2. jcsd
  3. Oct 24, 2011 #2
    Your answer is OK
  4. Oct 24, 2011 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    I agree that 8.12 N is correct. It looks like the book has an error here.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook