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devilaudy
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Homework Statement
Consider a charged particle moving with velocity v through a magnetic field B. Answer True or False.
1) The magnetic field B is always perpendicular to the acceleration a of the particle.
2) The magnetic force F is always perpendicular to the acceleration a of the particle.
3) The acceleration a of the particle is always perpendicular to the velocity v.
4) The force F exerted by the magnetic field is always perpendicular to the velocity v.
Homework Equations
F = qv x B (cross product, magnetic force on a moving charged particle).
The Attempt at a Solution
I tried 1) false 2) true 3) false 4) true and FFFT, but it was wrong. I was sure about my first answer since the magnetic force is always perpendicular to B and V.