A Proton Is in a Circular Orbit Due to a Magnetic

question 29

Multiple Choice

A proton is in a circular orbit due to a magnetic field of 1.5 mT.What is the orbital frequency? (Note: m_e = 1.67 * 10^-27 kg)

• A)32.6 MHz
• B)50.2 Hz
• C)44.7 mHz
• D)87.5 µHz
• E)22.9 kHz

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