centripetal

# centripetal - Note-A-Rific Centripetal When a moving charge...

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Note-A-Rific: Centripetal When a moving charge enters a magnetic field, its path will begin to curve since there is a force acting on it. Assuming the field is uniform, and big enough, the force acting on it. .. F m = B q v will be constant and acting at right angles to the particles velocity. Since it acts at right angles to the initial velocity of the particle, that component of the velocity won’t change. o Think of projectile motion examples where the horizontal component never changed even though the vertical did. The particle will follow a path that (if it continued) would be circular. The force acting on the charge (F m ) must therefore be the same as the centripetal force (F c ) F m = F c B q v = mv 2 /r Bq mv r = Which allows you to calculate the radius of the circular path the particle would follow. On the other hand, if you know the radius of the path and a few other values, you could calculate the particle’s mass (or charge). You don’t have this formula written this way on your data sheet, so get really

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centripetal - Note-A-Rific Centripetal When a moving charge...

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