Five particles follow the paths shown in the figure as they pass through a magne

Question

Five particles follow the paths shown in the figure as they pass through a magnetic field. The direction of the field is indicated by either dots or crosses in the figure. What can you conclude about the charge of each particle?

Particle 1 is ______ (positive, negative, or uncharged)

Particle 2 is ______ (positive, negative, or uncharged)

Particle 3 is ______ (positive, negative, or uncharged)

Particle 4 is ______ (positive, negative, or uncharged)

Particle 5 is ______ (positive, negative, or uncharged)

Explanation / Answer

Using right-hand rule one can determine the direction of Lorrentz force on a particle and if the particle deflets in the opposite direction then it's negatively charged; and if it doesn't deflect at all it's uncharged...

Particle 1 is uncharged
Particle 2 is negative
Particle 3 is positive
Particle 4 is positive
Particle 5 is negative

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