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In the figure, two long straight wires at separation d = 6.22 cm carry currents of i₁ = 4.25 mA and i₂= 3.00 i₁ out of the page. (a) At what
coordinate on the x axis in centimeters is the net magnetic field due to the currents equal to zero? (b) If the two currents are doubled, is
the zero-field point shifted toward wire 1, shifted toward wire 2, or unchanged?
(a) Number i
(b)
unchanged
Units

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