An Electron Moving Perpendicular to a Magnetic Field of 3

question 70

Multiple Choice

An electron moving perpendicular to a magnetic field of 3.2 × 10^-2 T moves in a circle of radius 0.40 cm. How fast is this electron moving?

• A) 2.3 × 10⁷ m/s
• B) 1.9 × 10^-53 m/s
• C) 1.9 × 10^-30 m/s
• D) 3.0 × 10⁹ m/s
• E) 0.80 × 10⁷ m/s

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