a$)$ If the magnetic field strength changes with time according to the equation; $B(t)=0\mathrm{.}9e^{-0\mathrm{.}7t}-1\mathrm{.}3t^2+1($measured in Tesla$),$ what is the induced current in the loop at $t=2\mathrm{.}00$ seconds? $($include its direction with justification$)$