(Solved): The figure below shows two circular wire loops in the x-y plane, with radic d and 3d, and a common ...

The figure below shows two circular wire loops in the $x$-y plane, with radic $d$ and $3d$, and a common center located at the orisin of the $(x-y)$ plane. The loops carry currents with magnitudes $I_1$ and $I_2$, as shown. 5) [lpt] The ${\vec{B}}_3$. field at the center will vavish if $I_1$ and $I_2$ satisfy a) $\frac{I_1}{I_2}=\frac{1}{3}$, isth the kwo currents ciraulating in opposite directions b) $I_{-1}=\frac{1}{3}$, with the two currents circulating in the same direction c) $\frac{I_1}{I_2}=3$, with the currents circulating in the d) $\frac{I_1}{I_2}=3$, nith the acrents circulating in oppsike