Question 4

A uniform magnetic field points horizontally north; its magnitude is 2.0 T. If an electron moves vertically downward through this field with a speed of 2 × 10⁷ m/s, what is the magnitude of the force exerted on the electron by the magnetic field?

• A. 4.0 × 10⁻¹³) N
• B. 8.0 × 10⁻¹³ N
• C. 1.6 × 10⁻¹² N
• D. 3.2 × 10⁻¹² N
• E. 6.4 × 10⁻¹² N
• F. Not close to any of the above

Formula Sheet

Question 3

Question 5

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