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!

Magnetic Effect of an Electric Current

  1. Nov 16, 2009 #1
    Two long straight wires are suspended vertically the wires are connected in series and a current from a battery is maintained in them. What happens to the wires? What happens if the battery is replaced by an a-c source.

    This is a crude schematic of the circuit.

    ----|i|i----
    | ` ` ` ` `| so what this shows is that the veritcal wires are geometricaly
    | ` ` ` ` `| parallel. This circuit is not a rigid body either, the wires are not
    | ` ` ` ` `| fixed to their initial positions and can act accordingly to the
    | ` ` ` ` `| forces applied to them.
    |________|

    EQUATIONS:
    F= iLxB vector quantities.


    Alright what I think is that the current's directions are opposite in each blue verticle wire. the forces acting on each wire due to the other are directed outward. So I would say the wires repel.

    Im unsure about this but even though the current is alternating, since the wires are in parallel the current will still be going down on and up the other resulting in the wires repelling each other.
     
    Last edited: Nov 16, 2009
  2. jcsd
  3. Nov 16, 2009 #2

    Delphi51

    User Avatar
    Homework Helper

    You are correct! If the AC frequency was very low, you would see some vibration because the current is close to zero for part of each cycle.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Magnetic Effect of an Electric Current
Loading...