The figure shows a circular region of radius R = 2.50 cm in which a uniform electric flux is directed out of the plane of the page. The total electric flux through the region is given by ΦE = (4.00 mV⋅m/s)t, where t is in seconds. What is the magnitude of the magnetic field that is induced at radial distances (a) 1.50 cm and (b) 5.00 cm?