1) Suppose you rotate a 1000 turn, 19 cm diameter coil in the Earth's 5.00 x 10-5 T magnetic field. What is the peak emf generated in V, given the plane of the coil is originally perpendicular to the Earth's field and is rotated to be parallel to the field in 8.5 ms?
2) Suppose a book is held 6.7 cm from a 12-cm focal length lens. Find the magnification of the image of the book. Find the magnification of the lens when the book is held 9.7 cm from the magnifier.