Two Point Charges Are Separated by 1

question 6

Multiple Choice

Two point charges are separated by 1.00 × 10-2 m. One charge is -2.8 × 10-8 C; and the other is +2.8 × 10-8 C. The points A and B are located 2.5 × 10-3 m from the lower and upper point charges as shown.
-If a proton, which has a charge of +1.60 × 10^-19 C, is moved from rest at A to rest at B, what is change in electrical potential energy of the proton?

• A)+2.1 × 10^-14 J
• B)+3.2 × 10^-14 J
• C)- 4.3 × 10^-15 J
• D)- 5.4 × 10^-15 J
• E)zero joules

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