# 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

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Force on Moving Charges & Right Hand Rule concept. You can view video lessons to learn Force on Moving Charges & Right Hand Rule Or if you need more Force on Moving Charges & Right Hand Rule practice, you can also practice Force on Moving Charges & Right Hand Rule practice problems .

How long does this problem take to solve?

Our expert Physics tutor, Juan took 3 minutes to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Criss' class at USF.