Also find 60 degrees and 90 degrees.

A 50-turn coil has a diameter of 19 cm. The coil is placed in a spatially uniform magnetic field of magnitude 0.3333333333333333 T so that the face of the coil and the magnetic field are perpendicular. Find the magnitude of the emf, &, induced in the coil if the magnetic field is reduced to zero unfiformly (a) In 0.1 s: (b) In 1.0 s: V (c) In 60 s: Now, fix the ramp-down time at 0.1 s and calculate the emf when the coils are rotated so that they make an angle with the magnetic field of (d) 30: V