A Singly Charged ⁹Be Ion Is Accelerated from Rest Through

question 9

Multiple Choice

A singly charged ⁹Be ion is accelerated from rest through a potential difference of 8000 V. The ion is then sent into a mass spectrometer where the radius of the path is 29 cm. What is the magnetic field in the spectrometer?

• A) 0.27 T
• B) 0.13 T
• C) 0.067 T
• D) 0.0028 T
• E) 0.00019 T

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