For the in$-$class COMSOL Multiphysics

example, the materials are kept the same

$($copper and Titanium beta$-21$S$,$ as seen in

figure below$).$ While one node is applied a

voltage of $1$ V $,$ please compare the modeling

results $($Electric Potential & Temperature$)$

between two different ground settings, with

Case $1$ setting the other node as ground and

Case $2$ setting one side as ground. Please

explain the reason if you find any difference.