1. At what angle of rotations, is the induced emf 0 V?[br]2. What is the reason the induced emf is 0 V?[br]3. At what angles of rotations is the value of the induced emf maximum?[br]4. What is the reason the induced emf is maximum?[br]5. Why does the induced current changes direction at [math]90^\circ[/math]?