As Shown in the Figure, the Charge $Q$ Is Midway Between Two Other Charges

question 40

Multiple Choice

As shown in the figure, the charge $Q$ is midway between two other charges. If $Q = - 7.5 \mathrm { nC }$ , what must be the charge $q 1$ so that charge $q 2$ remains stationary as $Q$ and $q 1$ are held in place?

• A) \(15 \mathrm { nC }\)
• B) \(60 \mathrm { nC }\)
• C) \(7.5 \mathrm { nC }\)
• D) \(30 \mathrm { nC }\)

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