Consider a simple mass spectrometer. The magnitude of the electric field between the plates of the velocity selector is 2 500 V/m and the magnetic field in both the velocity selector and the deflection chamber has a magnitude of 0.035 T. Calculate the radius of the path for a singly charged ion with mass m=2.18E-26.
2. Relevant equations
F = qVxB
3. The attempt at a solution
Why is the magnetic field ignored for the velocity selector portion??