Two long, parallel conducting wires carry current that are parallel to x-axis. Wire 1 carries a current I₁ = 1.5 A in the positive x-direction at y = 2.0 m. Wire 2 carries an unknown current I₂ at y = 0.0 m. The total magnetic field at y = 1.4 m due to the two current carrying wires has zero magnitude. Answer in 2 sig fig.

A. What is the value and direction of current I₂?

B. If the direction of current I₂ is reversed, at what distance from wire 2 is the net magnetic field zero?

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