Answer
$\mu=0.184Am^2$
Work Step by Step
We can find the magnitude of the magnetic dipole moment as:
$\mu=IA$
where $I$ is the current and $A$ is the area.
This can be written as:
$\mu=I\pi r^2$
We plug in the known values in the formula to obtain:
$\mu=2.60\times 3.1416\times (0.15)^2$
$\mu=0.184Am^2$