Solve everything thanks you

Shown in the figure below is an experiment with an electron (q = -1.602e-19 Coulombs, m = 9.109e-31 kg) fired into a magnetic field. The magnetic field is of strength B = 6.6e-05 Tesla and is directed into the screen. The electron is fired with a velocity v = 3.15e+06 m/s as shown. Trajectory A Magnetic Field (into the screen) electron | Trajectory B Which path is followed by the electron? O Trajectory B Trajectory A What is the radius of the circular path? meters What is the time spent by the electron in the magnetic field? seconds NOTE: The path length in the field is 1/4 of a circle, Submit