The Lorentz force
Answers are for parents and teachers.
1
q = 1.6·10⁻¹⁹ C, υ = 4·10⁶ m/s, B = 0.5 T, α = 90°. What is the force in units of 10⁻¹⁴ N?
32
2
The particle's speed doubled. By what factor does the radius change?
It doubles.
3
A proton and a deuteron (mass about twice as large, equal charge) have the same υ and B. What is the ratio R_d / R_p?
2
4
How does a particle that enters at 30° to the field lines move?
Along a helix: uniform motion along the field combined with circular motion in the perpendicular plane.
5
Explain the relation between the Lorentz force and the Ampère force.
The Ampère force is the sum of the Lorentz forces on the moving charge carriers.