A Point Charge Q Is Placed on the X Axis

question 34

Multiple Choice

A point charge Q is placed on the x axis at the origin. An identical point charge is placed on the x axis at x = −1.0 m and another at x = +1.0 m. If Q = 40 μC, what is the magnitude of the electrostatic force on the charge at x = +1.0 m?

• A) 29 N
• B) 14 N
• C) 11 N
• D) 18 N
• E) 7.0 N

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