A current carrying circular loop of radius R is placed in the x-y plane with center at the orgin . Half of the loop with $ x >0$ is now bent so that it now lies in the $y-z$ plane .

Question

$\begin{array}{1 1} \text{The magnitude of magnetic moment now diminishes } \\ \text{The magnetic moment does not change} \\ \text{the magnitude of $\overrightarrow{B}$ at (0,0,z), z >> R increases}\\ \text{the magnitude of $\overrightarrow{B}$ at (0,0,z), z >> R unchanged } \end{array} $