The astronomical object 4U0142+61 has the distinction ofcreating the most powerful magnetic field ever observed. This object is referred to as a "magnetar" (a subclass of pulsars), andits magnetic field is 1.30E+15 times greater than the Earth'smagnetic field. Suppose a 1.77 m straight wire carrying a currentof 2.40 A is placed in this magnetic field at an angle of 66.9° to the field lines.
1. What force does this wire experience?
2. A field this strong can significantly change thebehavior of an atom. To see this, consider an electron moving witha speed of 2.62E+6 m/s. What is the maximum magnetic force exertedon the electron?
3. Calculate the ratio of this magnetic force to theelectric force a proton exerts on an electron in a hydrogen atom.The radius of the hydrogen atom is 5.29E-11 m.