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!

Study Question - Real Battery with bulb, current/resistance

  1. Nov 2, 2009 #1
    1. The problem statement, all variables and given/known data

    Capture.JPG

    2. Relevant equations

    [itex]KE = 1/2mv^2[/itex]
    [itex]F_B=I(L x B)[/itex]

    3. The attempt at a solution

    I have the answer to this, (D) but I don't know how to get it.

    I know that the gained kinetic energy is equal to the lost potential energy of the system. What's the potential energy of the system? ILB? If so, how does that translate to answer D?
     
  2. jcsd
  3. Nov 2, 2009 #2

    Delphi51

    User Avatar
    Homework Helper

    You can find the force on the rod using F = ILB. Use accelerated motion formulas to find the speed after time t.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Study Question - Real Battery with bulb, current/resistance
Loading...