(Solved): Consider two parallel wires carrying currents in the same direction, but the left wire carries a c ...

Consider two parallel wires carrying currents in the same direction, but the left wire carries a current of \( 2 I_{0} \) while the right wire carries a current of \( I_{0} \). The currents are pointing upwards as shown in the figure below. Point A is midway between the wires (a distance \( r \) from each wire). What is the magnitude of the magnetic field at point \( \mathrm{A} \) ?