The astronomical object 4U0142+61 has the distinction of creating the most powerful magnetic field ever observed. This object is referred to as a "magnetar" (a subclass of pulsars), and its magnetic field is 1.32E+15 times greater than the Earth's magnetic field. Suppose a 3.49 m straight wire carrying a current of 2.29 A is placed in this magnetic field at an angle of 70.3 ° to the field lines.
a) What force does this wire experience?
b) A field this strong can significantly change the behavior of an atom. To see this, consider an electron moving with a speed of 2.80E+6 m/s. What is the maximum magnetic force exerted on the electron?
c) Calculate the ratio of this magnetic force to the electric force a proton exerts on an electron in a hydrogen atom. The radius of the hydrogen atom is 5.29E-11 m.