1. Not finding help here? Sign up for a free 30min 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!

Average current by particle moving in circle

  1. Nov 29, 2015 #1
    1. The problem statement, all variables and given/known data
    A particle having charge 8 nC moves in circular orbit with angular speed of 100 π rad/s. Find the average current produced!
    a. 0.2 μA
    b. 0.3 μA
    c. 0.4 μA
    d. 0.5 μA
    e. 0.6 μA

    2. Relevant equations
    Q = I.t

    3. The attempt at a solution
    The equation I can think of is Q = I.t. I don't know how to find t and I also don't know what the use of angular speed in this question.

    Thanks
     
  2. jcsd
  3. Nov 29, 2015 #2

    gneill

    User Avatar

    Staff: Mentor

    The particle is traveling in a circle with a given angular frequency. How often does it pass a given point in its "orbit"?
     
  4. Nov 29, 2015 #3

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    At the given angular velocity, how long does the particle need to make one revolution?
    How much charge flows when the particle makes one revolution?
     
  5. Nov 29, 2015 #4
    I get it. I find the period then it's the time. The answer is C

    Thanks a lot
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted