A conductive wire is bent into a semicircular loop of radius R as shown in the figure. The center of the loop is placed exactly at the boundary of the magnetic field, with the plane of the loop perpendicular to the magnetic field. As shown in the figure, at 1-0, the loop starts to rotate around the O axis from rest with a constant angular acceleration of a = 6(). Here B = 4 (T), R = 1 (m). What is the maximum electromotive force induced in the loop in Volts? (n-3) t=0 R R X TRO X