A singly ionized charge travels undeflected through region I which consists of crossed electric and magnetic fields and velocity of 105 m/s (E ⊥ B) The value of the magnetic field in region I is 3 T. What is the value of the electric field in region I? Its mass is 4 x 10-27 kg. (b) The ion then enters another region II with the same velocity it attained in region I. Find the radius of its path. The magnetic field in region II is 10T