Problem C15: In the figure above there are 4 wires that are perpendicular to the screen. The current in the wires are +1 Amp, n₁ Amp, n₂ Amp, and +3 Amp. The "+" direction is out of the screen. If the closed path integral of B⋅dl = μ₀ n₃ where n₃ is the number of Amps, what is n₃. Note that the direction of the path integral is clockwise.

n1 =	n2 =	Input n3:

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Problem: