Two Point Charges of +2

question 30

Multiple Choice

Two point charges of +2.0 μC and -6.0 μC are located on the x-axis at x = -1.0 cm and x = +2.0 cm respectively.Where should a third charge of +3.0-μC be placed on the +x-axis so that the potential at the origin is equal to zero? =

• A) x = 4.0 cm
• B) x = 1.0 cm
• C) x = 2.0 cm
• D) x = 3.0 cm
• E) x = 5.0 cm

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