Two parallel long (infinite for our purposes) wires are oriented along the z-axis. The figure below shows the (xy)-plane perpendicular to the wires, including the positions where the wires cross this plane. The wires carry some unknown electric currents 1₁ and 12, which you need to find from a single measurement of the magnetic field B=B, i + By j at point A, whose position in the plane is also indicated. We will treat the currents algebraically: the current I is positive when it runs in the direction of the z-axis and negative when it runs in the opposite direction. In the right-hand system of coordinates, the z-axis is directed out of the screen towards us. The geometric parameters are known: a=0.52 cm, b=0.34 cm. 1₁₂ a a 1₂ Given the measurement of the magnetic field: B=-0.52 G and By=-0.48 G, what is the unknown current I₁?: 1₁= A. What is the unknown current 1₂?: A.

Two parallel long (infinite for our purposes) wires are oriented along the z-axis. The figure below shows the (xy)-plane perpendicular to the wires, including the positions where the wires cross this plane. The wires carry some unknown electric currents 1₁ and 12, which you need to find from a single measurement of the magnetic field B=B, i + By j at point A, whose position in the plane is also indicated. We will treat the currents algebraically: the current I is positive when it runs in the direction of the z-axis and negative when it runs in the opposite direction. In the right-hand system of coordinates, the z-axis is directed out of the screen towards us. The geometric parameters are known: a=0.52 cm, b=0.34 cm. 1₁₂ a a 1₂ Given the measurement of the magnetic field: B=-0.52 G and By=-0.48 G, what is the unknown current I₁?: 1₁= A. What is the unknown current 1₂?: A.