Forces between 2 parallel wires=>

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Homework Help Overview

The problem involves four long straight parallel wires positioned at the corners of a square, each carrying an equal current. The objective is to determine the magnetic field's magnitude and direction at the center of the square.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to use a free body diagram and resolve forces along the x and y axes. They reference a formula for calculating the magnetic field but express uncertainty about their approach. Another participant suggests considering the symmetry of the setup and whether the directions of the magnetic fields at the center might offset each other.

Discussion Status

The discussion includes attempts to clarify the approach to the problem and explore the implications of symmetry. One participant indicates they have figured out their understanding, while another expresses interest in seeing the answer, suggesting a lack of consensus on the final outcome.

Contextual Notes

Participants note the absence of specific equations and the original poster's uncertainty about their calculations. There is an emphasis on understanding the magnetic field's behavior due to the configuration of the wires.

noobie!
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Homework Statement


four long straight parallel wires located at the corners of a square of side l=6cm carry equal current I=10A which is perpendicular.Determine the magnitude and direction of B at the center of the square.

Homework Equations


don't have,so sorry..


The Attempt at a Solution


i begin with drawing a free body diagram where the forces are located.Then i resolve them according to y-axis and x-axis.i use B=u(Ia)(Ib)l / 2pie(r) correct me if I'm wrong,but somehow i can't get the ans..could you please kindly rectify and guide me..thanks a lot..=>:smile:
 
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noobie! said:

Homework Statement


four long straight parallel wires located at the corners of a square of side l=6cm carry equal current I=10A which is perpendicular.Determine the magnitude and direction of B at the center of the square.

Homework Equations


don't have,so sorry..

The Attempt at a Solution


i begin with drawing a free body diagram where the forces are located.Then i resolve them according to y-axis and x-axis.i use B=u(Ia)(Ib)l / 2pie(r) correct me if I'm wrong,but somehow i can't get the ans..could you please kindly rectify and guide me..thanks a lot..=>:smile:

Are there any symmetries that you think you can exploit?
Such as what are the directions of the B-field at the center point. Do any of them offset each other?
 
oh,i can figure it out already,thanks for your guidance o:)
 
Could you please post the answer?
I subscribed to this thread to see the answer :P
 

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