A rectangular conducting loop is placed on a flat surface, with the longer sides parallel to a current$-$carrying wire on the same surface, as shown in the figure.

Assume $h=0\mathrm{.}400mm,w=1\mathrm{.}40mm,$ and $l=2\mathrm{.}80mm.$ What is the mutual inductance $($in pH $)$ for this configuration?

$!pH$