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AP® Physics C: E & M

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Charged Particle Moving

APPHEM-NDX6ZF

A charged particle moving at speed v enters a uniform magnetic field of strength B in a path perpendicular to the field lines.

Which of the following would cause the greatest increase in magnetic force on the particle?

A

Doubling the speed.

B

Decreasing the strength of the magnetic field.

C

Tripling the charge on the particle.

D

Entering the magnetic field in a path running parallel to the field lines.