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Homework Help: Find a solution

  1. Dec 21, 2009 #1
    1. The problem statement, all variables and given/known data[STRIKE][STRIKE][/STRIKE][/STRIKE]

    http://img697.imageshack.us/img697/2317/img11l.jpg [Broken]

    (a = 0.10 m and b = 0.16 m)

    i=3t^3 - 5t

    (i - ampéres t - seconds)

    Determine the voltage induced in the coil to the instant t = 3 sec. well as the current direction.

    2. Relevant equations

    Hall efect

    3. The attempt at a solution
    A= 0.016 m^2
    For t= 3 sec ..... i=3*3^3 - 5*3 .........i= 66 ampéres
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Dec 21, 2009 #2


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    Homework Helper

    V=-d(phi)/dt, so first find an equation for phi in terms of i. Deriving that equation with respect to time will get you d(phi)/dt.
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