Question

Example 1.7 Consider the charges q. q, and -9 placed at the vertices
of an equilateral triangle, as shown in Fig. 1.10. What is the force on
each charge?​

Answer 1

Answer:

The magnetic force is proportional to q and to the magnitude of the vector cross product v × B. In terms of the angle ϕ between v and B, the magnitude of the force equals qvB sin ϕ. An interesting result of the Lorentz force is the motion of a charged particle in a uniform magnetic field.