Two Charges Q₁ (= +6 C)and Q₂ (= -2

question 21

Multiple Choice

Two charges Q₁ (= +6 C) and Q₂ (= -2 C) are brought from infinity to positions on the x-axis of x = -4 cm and x = +4 cm,respectively.How much work was done in bringing the charges together?

• A)-1.80  10⁶ J
• B)-9.00  10⁵ J
• C)-16.9 J
• D)-1.35 J
• E)none of the above

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