Question

Parts a and b of the drawing show the same uniform and constant (in time) magnetic field B directed perpendicularly into the screen over a rectangular region. Outside this region, there is no field. Also shown is a rectangular coil (one turn), which lies in the plane of the screen. In part a the long side of the coil (length = L) is just at the edge of the field region, while in part b the short side (width = W) is just at the edge. It is known that L/W = 5.67. In both parts of the drawing, the coil is pushed into the field with the same velocity v until it is completely within the field region. The magnitude of the emf induced in the coil in part a is 0.357 V. What is its magnitude in part b?

Answer 1