An Electron Is Moving at 3 $\times$ 10⁶ M/s Perpendicular to a Uniform Magnetic Field

question 42

Multiple Choice

An electron is moving at 3.6 $\times$ 10⁶ m/s perpendicular to a uniform magnetic field.If the radius of the motion is 18 mm,what is the magnitude of the magnetic field?

• A) 70 mT
• B) 0.95 mT
• C) 9.3 mT
• D) 1.6 \(\mu\)T
• E) 8.9 nT

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