high School⏱ 4 min

Lorentz Force

A charge circles in a magnetic field

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××××××××××××××××××××××××××××××××××××××××××××××××B ⊗ 1.0+

Parameters (B points into the screen)

r=\ racmv∣q∣B,F=∣q∣vBr = \ rac{mv}{|q|B}, \quad F = |q|vB

• The force is always perpendicular to velocity -> circular path • Opposite charge circles the opposite way • q = 0: no force, the particle flies straight • Stronger field -> smaller radius