A horizontal magnetic field of 2.0×10?4 T is at an angle of 25 to the direction of the current in a straight, horizontal wire 75 cm long.
Part A If the wire carries a current of 20 , what is the magnitude of the force on the wire?
F= _________ N
Part B What angle(s) would be required for the force to be half the value found in part A, assuming nothing else is changed?
= _____ degrees