A square wire loop with $3\mathrm{.}0$ m sides is perpendicular to a uniform magnetic field, with half the area of the loop in the field as shown in figure below. The loop contains an ideal battery with emf e$=5\mathrm{.}0$V $.$ If the magnitude of the field varies with time according to B$=0\mathrm{.}80+0\mathrm{.}62$t$,$ with B in teslas and t in seconds, what are $($a$)$ the net emf in the circuit and $($b$)$ the direction of the $($net$)$ current around the loop?