In the Figure, the Two Long Straight Wires Are Separated $d = 0.40 \mathrm {~m} .$

question 118

Short Answer

In the figure, the two long straight wires are separated by a distance of $d = 0.40 \mathrm {~m} .$ The currents are $I _ { 1 }$ = 1.0 A to the right in the upper wire and $I _ { 2 }$ = 8.0 A to the left in the lower wire. What are the magnitude and direction of the magnetic field at point P, that is a distance $d / 2 = 0.20 \mathrm {~m}$ below the lower wire? (?₀ = 4? × 10^-7 T ? m/A)

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