What is the polar moment of inertia of a rod with a length of 2 m and a diameter of 30 mm?   a. 2.5E-07 m4   b. 8E-08 m4   c. 1.2E-07 m4   d. 2.5E-08 m4

9. What is the direction of the induced current in each scenario below? Acceptable answers are: Clockwise, Counterclockwise, and no induced current. In scenario C, the loop does not cross the wire. In scenario F, the magnetic field only exists in the region outlined by the dashed lines creating a square. A. B. Loop Loop A B C Loop C. D. D E. F. Magnet moving down Loop E Magnet moving S down I Loop Bexternal Area of loop decreasing Current I decreasing in magnitude F I Loop moving down O Loop Be external Angle theta starting at 90 and decreasing to 0 degrees