A Uniform Magnetic Field of Magnitude 0

question 18

Multiple Choice

A uniform magnetic field of magnitude 0.80 T in the negative z direction is present in a region of space,as shown in the figure.A uniform electric field is also present and is set at 76,000 V/m in the +y direction.An electron is projected with an initial velocity v₀ = 9.5 × 10⁴ m/s in the +x direction.The y component of the initial force on the electron is closest to which of the following quantities? (e = 1.60 × 10^-19C)

• A) -2.4 × 10^-14 N
• B) _+2.4 × 10^-14 N
• C) -_1.0 × 10^-14 N
• D) _+1.0 × 10^-14 N

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