A Deuteron Is Moving with a Speed of 2

question 34

Multiple Choice

A deuteron is moving with a speed of 2.0 × 10⁶ m/s at right angles to a magnetic field. The field is uniform, with magnitude B = 0.40 T. The mass and charge of a deuteron are 3.3 × 10^-27 kg and 1.6 × 10^-19 C, respectively. The radius of the deuteron orbit is approximately

• A) 0.21 m.
• B) 1.8 m.
• C) 6.3 m.
• D) 10 cm.
• E) 27 cm.

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