21% ookmarks Window Help webassign.net and carry aments of r-s The two wires sho

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21% ookmarks Window Help webassign.net and carry aments of r-s The two wires shown in the figure below are separated by d-12.2 2d (a) Find the magnitude and direction of the net magnetic field at a point midway between the wires. magnitude directiorn right. and direction of the net magnetic field at point Ps. 12.2 cm to the right of the wire on the (b) Find the magnitude magnitude direction (e) Find the magnitude and direction of the net magnetic field at point Pa magnitude and direction of the net magnetic field at point Pa, 2d-24.4 cm to the left of the wire on the left. AIT Need Help?Read 12 112 points 1 Previous Answors SercP11 19 PO49 of the conductors. The directio Four long, parallel conductors carry equal currents of 1 3.25 A. The figure shown below is an end view page a It points A and B (indicated by the crosses) and out of the page at C and D (indicated by the dots). Calculate the magntude and C MacBook Air

Explanation / Answer

field due to a wire, B =u0 I / (2 pi r)

(A) at midpoint,

B = (u0 I / (2 pi (d/2))) + (u0 I / (2 pi (d/2)))

B = 2 u0 I / pi d  

B = (2 x 4pi x 10^-7 x 5.35) / (pi x 0.122)

B = 35 x 10^-6 T Or 35 uT  

(B) B = u0 I / (2 pi d) - u0 I / (2 pi (2d))

B = u0 I / 4 pi d

B = 4.4 x 10^-6 T Or 4.4 uT  

Ans: 4.4

(C) B = u0 I / ( 2 pi (2d)) - u0 I / (2 pi (3d))

B = u0 I / 12 pi d

B = 1.5 x 10^-6 T Or 1.5 uT  

Ans: 1.5

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