a.Find the radius of curvature of the ion’s orbit.

A beam of electrons with velocity vx = 5 x105 m/s is introduced into a uniform magnetic field Bz = 30 mTesla. An electric field Ey is applied perpendicular to both the initial velocity and the magnetic field. What value of electric field must be applied to leave the electron beam undeflected? Select one: a. 6.0 x 10-6 V/m b. 1.5 x 104 V/m c. 3.0 x 104 V/m d. 16.6 V/m

5.

4. An alpha particle of charge +2e and mass 4(1.66 × 10-27) kg, and an ¹60 nucleus of charge +8e and mass 16(1.66 × 10-27) kg have been accelerated from rest through the same electric potential. They are then injected into a uniform magnetic field B, where both move at right angles to the field. The ratio of the radius of the path of the alpha particle to the radius of the path of the nucleus ¹60 is a. ra/ro = 1/1 b. ra/ro = 1/4 ra/ro = 1/8 ra/ro = 1/2 None of these is correct. c. d. e.