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Can anyone give me an idea on these probs

  1. Mar 4, 2005 #1
    Hello. Our instructor gave us 2 sets of problems. Deadline is on monday. If anyone can share his / her idea, I would really appreciate it.

    Here are the problems:
    1. Two positive point charges q and q2 are moving relative to an observer at point P; P measures the forces on the charges.

    a) What is the direction of the force that q2 exerts on q?
    b) what is the direction of the force that q exerts on q2?
    c) if V=V2= 3.00 x 10^6 m/s. What is the ratio of the magnitude
    of the magnetic force that acts on each charge to that of the coulomb
    force that acts on each charge?

    2. A long straight wire lies along the y-axis and carries a current of 5.00A in the y-direction. In addition to the magnitude Bo with magnitude 1.75x10^-6 T is the +x direction. What is the total field(magnitude and direction) at the following points to the xz plane:
    a) x=0 ; z=2.00m
    b) x=2.00 m; z=0
    c) x=0;z=0.50m

    Any help would be very much appreciated.Thank you in advance. :smile:
  2. jcsd
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