Please help! A straight wire is placed in the magnetic field of a U-shaped magnet as shown in fig. 1 (attached) The length of the wire in the field is 35 mm. When a current of 1.8 Amp is in the wire, a force of 0.024 N acts on the wire due to the field. Calculate the magnetic flux density of the field. Thank you for helping (if you can!)

One historical reason that people in the indian subcontinent have been reluctant to use livestock for food has been that a. their digestive systems are unable to handle meat and proteins b. they refused to eat meat in order to show resistance to british imperialism c. they are able to use cattle as a labor mainstay of their agriculture d. they can use the meat from cattle as fertilizer to make crops grow better