A single-turn circular loop of wire of radius 40 mm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.10 s time interval, the magnitude of the field increases uniformly from 300 to 650 mT.
(a) Determine the emf induced in the loop.
(b) If the magnetic field is directed out of the page, what is the direction of the current induced in the loop?