188- The figure below shows the cross-section of two long parallel wires perpendicular to the page, carrying equal currents in the directions shown. At point M, what is the direction of the net (pure) magnetic field?
[(1)] In the direction of the $x$-axis
[(2)] In the direction of the $y$-axis
[(3)] Opposite to the $x$-axis
[(4)] Opposite to the $y$-axis
[Figure: Two long parallel wires shown in cross-section. Wire $I_1$ (current out of page) is at upper left, wire $I_2$ (current into page) is at lower left. A coordinate system with $x$ and $y$ axes is shown, with point M on the $x$-axis to the right of the origin.]
\textbf{188-} The figure below shows the cross-section of two long parallel wires perpendicular to the page, carrying equal currents in the directions shown. At point M, what is the direction of the net (pure) magnetic field?
\begin{itemize}
\item[(1)] In the direction of the $x$-axis
\item[(2)] In the direction of the $y$-axis
\item[(3)] Opposite to the $x$-axis
\item[(4)] Opposite to the $y$-axis
\end{itemize}
\textit{[Figure: Two long parallel wires shown in cross-section. Wire $I_1$ (current out of page) is at upper left, wire $I_2$ (current into page) is at lower left. A coordinate system with $x$ and $y$ axes is shown, with point M on the $x$-axis to the right of the origin.]}
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