Problem

Problem

7. A charged particle traveling with a velocity v\mathbf{v} in an electric field E\mathbf{E} experiences a force F\mathbf{F} that must be (A) parallel to v\mathbf{v} (B) perpendicular to v\mathbf{v} (C) parallel to v×E\mathbf{v} \times \mathbf{E} (D) parallel to E\mathbf{E} (E) perpendicular to E\mathbf{E} (A) parallel to v\mathbf{v} (B) perpendicular to v\mathbf{v} (C) parallel to v×E\mathbf{v} \times \mathbf{E} (D) parallel to E\mathbf{E} (E) perpendicular to E\mathbf{E}

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