Point Charges Q and Q Are Positioned as Shown

question 70

Multiple Choice

Point charges q and Q are positioned as shown. If q = +2.0 nC, Q = −2.0 nC, a = 3.0 m, and b = 4.0 m, what is the electric potential difference, V_A − V_B?

• A) 8.4 V
• B) 6.0 V
• C) 7.2 V
• D) 4.8 V
• E) 0 V

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