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Ampere's Law and straight wires

  • Thread starter krtica
  • Start date
  • #1
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The figure below shows two long, straight wires in the xy plane and parallel to the x axis. One wire is at y = −6.0 cm and the other wire is at y = +6.0 cm. The current in each wire is 19 A. If the currents are both in the −x direction, find the magnetic field at the following points on the y axis.

http://www.webassign.net/tipler6/27-p-025.gif

(a) y = −3.7 cm

BL=(mu_o)I
B=[(mu_o)I]/2pi*r

-{(mu_o)I/2pi(distance-point)}+{(mu_o)I/2pi(distance+point)}, so the answer should be negative

My answer is somewhere around -.12602 T, which is wrong. Please help!
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
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Show your calculations.
 
  • #3
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I found my error. Thank you for replying.
 

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