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!

How would I calculate the voltage

  1. Nov 6, 2013 #1
    1. The problem statement, all variables and given/known data
    A 0.18m long metal rod is places on some metal rollers in a megnetic field directed into the page. When the rod is moved left with a speed of 1.6ms-1, a current of 0.034 A is measured through the 25Ω resistor.
    How would I calculate the voltage when I'm not given the magnetic field strength? V=BvL


    2. Relevant equations
    F=BI:
    F=Bvq
    V=Bvl

    3. The attempt at a solution
    F=BIL
    = 9.8=B*0.034*0.18
    B=9.7/(0.034*0.18)
    =1601T

    V=BvL
    V=1601*1.6*0.18
    =461.19V..

    I'm not sure if you can use 9.8 for the force,
    please help
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 6, 2013 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    hi mnishi96! welcome to pf! :smile:
    can't you just use V = IR ?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: How would I calculate the voltage
Loading...