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, E, induced in the coil if the magnetic field is reduced to zero unfiformly (a) In 0.1 s: V
(b) In 1.0 s: V
(c) In 60 s: V
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
(e) 60°: V
(f) 90°: V