Power plants use generators to generate electricity for homes and businesses. some generators work by spinning a coil of wire inside a magnet, as shown in the image. to keep the coil of wire spinning, it’s often attached to a turbine, which is an axle with fan blades. different kinds of power plants use different methods to spin the turbine to make electricity. what’s one way a power plant might spin the turbine?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?