Several Charges in the Neighborhood of Point P Produce an Electric

question 3

Multiple Choice

Several charges in the neighborhood of point P produce an electric potential of 6.0 kV (relative to zero at infinity) and an electric field of N/C at point P. Determine the work required of an external agent to move a 3.0-μC charge along the x axis from infinity to point P without any net change in the kinetic energy of the particle.

• A) 21 mJ
• B) 18 mJ
• C) 24 mJ
• D) 27 mJ
• E) 12 mJ

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