7. A positively charged argon ion (+1) is accelerated from rest through a potential difference of 1 kV, after which it coasts at a constant velocity along the z axis. When it passes between the pole faces of a magnet where B = 0.2 Tesla in the x direction, it is deflected, and after emerging from the magnet it continues on in a new direction. (a) What is the cyclotron frequency for an argon ion in an 0.2 Tesla field? (b) What is the angle of deflection as measured from the z axis if the ion is subjected to the magnetic field for a time of 2.0 us? (c) How far does it travel when it is between the pole faces?

7. A positively charged argon ion (+1) is accelerated from rest through a potential difference of 1 kV, after which it coasts at a constant velocity along the z axis. When it passes between the pole faces of a magnet where B = 0.2 Tesla in the x direction, it is deflected, and after emerging from the magnet it continues on in a new direction. (a) What is the cyclotron frequency for an argon ion in an 0.2 Tesla field? (b) What is the angle of deflection as measured from the z axis if the ion is subjected to the magnetic field for a time of 2.0 us? (c) How far does it travel when it is between the pole faces?