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Hmwrk 7 Question 15

0 votes
304 views

Three long, parallel conductors each carry a current of

I = 1.80 A. The figure below is an end view of the conductors, with each current coming out of the page. Taking a = 0.60 cm, determine the magnitude and direction of the magnetic field at the following points.

image

 

Is b= (uI)/(2pir) the correct formula to use here? and could you please explain the process as how to solve for the points

asked Oct 13, 2014 in Intro College Physics by anonymous

1 Answer

0 votes
Use the right hand rule we talked today in class, the B-field's directions can be found. The magnitude can be found with the Ampere's Law result for the infinite straight wire: ||B=\mu_0I/2\pi r||.  

Each current will create a B-field as a vector (both direction and magnitude). Then for each point, sum the three B-field vectors to get the total B-field (also a vector).
answered Oct 13, 2014 by PhysicsDude (21,750 points)
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