A Charged Particle Is Moving Horizontally Westward with a Velocity

question 83

Multiple Choice

A charged particle is moving horizontally westward with a velocity of 3.5 × 10⁶ m/s in a region where there is a magnetic field of magnitude 5.6 × 10^-5 T directed vertically downward. The particle experiences a force of 7.8 × 10^-16 N northward. What is the charge on the particle?

• A) +4.0 × 10^-18 C
• B) -4.0 × 10^-18 C
• C) +4.9 × 10^-5 C
• D) -1.2 × 10^-14 C
• E) +1.4 × 10^-11 C

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