1: 28-3 - Straightforward practice with cross product and Lorentz force law.

2: 28-11 - Straightforward practice with magnetic flux. Should be simple given your experience with electric flux.

3: 28-27 and 4: 28-19 - Practice with charged particle moving in a uniform magnetic field. Low to moderate difficulty.

5: 28-23 - mass spectrometer, moderate difficulty.

6: 28-33 - practice with torques on current loops in magnetic fields.

7: 28-43 - moderate difficulty

8: 28-45 - first, figure out how a cyclotron works! … they are used in medicine …. Moderate difficulty.

9: 28-57 - marry mechanics with magnetic forces, moderate to difficult

10: 28-63 - same as 9.

11: 29-3 - low difficulty practice with B producing charges

12: 29-15 - moderate difficulty

13: 29-21 - somewhat difficult

14: 29-23 - practice with Ampere's law

15: 29-28 - moderate to difficult Ampere's law problem