In a Mass Spectrometer, a Singly-Charged Particle (Charge E) Has

question 8

Multiple Choice

In a mass spectrometer, a singly-charged particle (charge e) has a speed of 1.0 × 10⁶ m/s and enters a uniform magnetic field of 0.20 T. The radius of the circular orbit of the particle is 0.020 m. What is the mass of this particle? (e = 1.60 × 10^-19C)

• A) 3.2 × 10^-28 kg
• B) 6.4 × 10^-28 kg
• C) 1.7 × 10^-27 kg
• D) 4.5 × 10^-27 kg

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