9) (3 points) Determine the radius of curvature for an electron travelling at 8.30x107m/s perpendicular through a 0.11 T magnetic field. The magnetic field produced at the center of a solenoid (for example a coil) can be calculated using the formula: B = Ho (n/L) I Where: B is the magnetic field strength in the coil (T) I is the current through the wire (A) n is the number of turns on the solenoid L is the length of the solenoid (m) No is the magnetic permeability constant which is dependent on the materials composing the core of the solenoid. Most often (and in this case as well) the solenoid will be filled with air or sometimes it will be a vacuum. The magnetic permeability constant for air or vacuum is: 1.26 x 10-6 N/A2) 10) (3 points) Calculate the magnetic field strength in units of Tesla (T) produced at the centre of a 30.0 cm long solenoid with 150 turns carrying a current of 1.20 A