The drawing shows two perpendicular, long, straight wires, both of which lie in

Question

The drawing shows two perpendicular, long, straight wires, both of which lie in the plane of the paper. The current in each of the wires is I =5.6A. In the drawing dH =0.23m and dV =0.37m. Find the magnitudes of the net magnetic fields at points A and B.

The drawing shows two perpendicular, long, straight wires, both of which lie in the plane of the paper. The current in each of the wires is I =5.6A . In the drawing dH =0.23m and dV =0.37m . Find the magnitudes of the net magnetic fields at points A and B.

Explanation / Answer

Points A and B:

B = B1 + B2

B = i/2r1 + i/2r2

B = i/2 (1/dH + 1/dV)

B = 4*3.14e-7*5.6/2/3.14 * (1/0.37 + 1/0.23)

B = 7.90e-6 T

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