Forces between 2 parallel wires=>

  • Thread starter noobie!
  • Start date
  • #1
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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:
 

Answers and Replies

  • #2
LowlyPion
Homework Helper
3,090
4

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?
 
  • #3
58
0
oh,i can figure it out already,thanks for your guidance o:)
 
  • #4
209
1
Could you please post the answer?
I subscribed to this thread to see the answer :P
 

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