Force on Moving Charges & Right Hand Rule Video Lessons

Concept

# Problem: A uniform magnetic field of magnitude 0.80 T in the negative z-direction is present in a region of space. A uniform electric field is also present. In Figure 1, the electric field is set at 11,200 V/m in the positive y-direction. An electron is projected with an initial velocity vo = 1.4 x 104 m/s in the positive x-direction. The y-component of the initial force on the electron is closest to: A) +2 x 10-15 N B) -2 x 10-15​ N C) +4 x 10-15​ N D) zero E) -4 x 10-15​ N

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###### Problem Details

A uniform magnetic field of magnitude 0.80 T in the negative z-direction is present in a region of space. A uniform electric field is also present. In Figure 1, the electric field is set at 11,200 V/m in the positive y-direction. An electron is projected with an initial velocity vo = 1.4 x 104 m/s in the positive x-direction. The y-component of the initial force on the electron is closest to:

A) +2 x 10-15 N

B) -2 x 10-15​ N

C) +4 x 10-15​ N

D) zero

E) -4 x 10-15​ N