A Point Charge (-5 $\mu$ C)is Placed on the X Axis at X = 4

question 135

Multiple Choice

A point charge (-5.0 $\mu$ C) is placed on the x axis at x = 4.0 cm,and a second charge (+5.0 $\mu$ C) is placed on the x axis at x = -4.0 cm.What is the magnitude of the electric force on a third charge (+2.5 $\mu$ C) placed on the y axis at y = 3.0 cm?

• A)90 N
• B)45 N
• C)54 N
• D)72 N
• E)36 N

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