1. 2. 3. m A proton speeding through a synchrotron at 3.0x107 experiences a magnetic field of 4 Tat a right angle to its motion that is produced by the steering magnets inside the synchrotron. What is the magnetic force pulling on the proton? A 10 m long high-tension power line carries a current of 20 A perpendicular to the earth's magnetic field of 5.5x10-5 T. What is the magnetic force on the wire? An electron travels at 2.0x107 in a plane perpendicular to a 0.1 T magnetic field. What is the radius and period of the electron?