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Problem 3 Consider the diagram below, where q₁ = -12 μC, q₂ = +15 μC, and q = +19 μC. Initially the charges were all extremely far apart from each other, but then someone moved them together (first g₁, then q₂, and then finally qs) into the triangular configuration shown below. The lengths of this triangle are a = 30 cm, b 40 cm, and c = 50 cm. 9-12MC c 0.5m 0.3m α +19MC +154C b 0.4m (a) What is the electrical potential energy of the system after q is brought into place, but before q₂ and qs are brought into place? APE=-Ed APE=a(-.d) APE=0 no charges, nothing to act on (b) How does your answer in part (a) compare to the amount of work required to move q₁ into place? W=qAV (c) Write an algebraic expression for the electrical potential energy of the system after all three charges have been brought into place. APE=qAV (d) Calculate how much work was required to move all three charges into place.

Problem 3 Consider the diagram below, where q₁ = -12 μC, q₂ = +15 μC, and q = +19 μC. Initially the charges were all extremely far apart from each other, but then someone moved them together (first g₁, then q₂, and then finally qs) into the triangular configuration shown below. The lengths of this triangle are a = 30 cm, b 40 cm, and c = 50 cm. 9-12MC c 0.5m 0.3m α +19MC +154C b 0.4m (a) What is the electrical potential energy of the system after q is brought into place, but before q₂ and qs are brought into place? APE=-Ed APE=a(-.d) APE=0 no charges, nothing to act on (b) How does your answer in part (a) compare to the amount of work required to move q₁ into place? W=qAV (c) Write an algebraic expression for the electrical potential energy of the system after all three charges have been brought into place. APE=qAV (d) Calculate how much work was required to move all three charges into place.

University Physics Volume 2
University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
Publisher:OpenStax
Chapter5: Electric Charges And Fields
Section: Chapter Questions
Problem 52P: Suppose Earth and the Moon each carried a net negative charge Q . Approximate both bodies as point...
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Problem 3 Consider the diagram below, where q₁ = -12 μC, q₂ = +15 μC, and q = +19 μC. Initially the charges were all extremely far apart from each other, but then someone moved them together (first g₁, then q₂, and then finally qs) into the triangular configuration shown below. The lengths of this triangle are a = 30 cm, b 40 cm, and c = 50 cm. 9-12MC c 0.5m 0.3m α +19MC +154C b 0.4m (a) What is the electrical potential energy of the system after q is brought into place, but before q₂ and qs are brought into place? APE=-Ed APE=a(-.d) APE=0 no charges, nothing to act on (b) How does your answer in part (a) compare to the amount of work required to move q₁ into place? W=qAV (c) Write an algebraic expression for the electrical potential energy of the system after all three charges have been brought into place. APE=qAV (d) Calculate how much work was required to move all three charges into place.
Transcribed Image Text:Problem 3 Consider the diagram below, where q₁ = -12 μC, q₂ = +15 μC, and q = +19 μC. Initially the charges were all extremely far apart from each other, but then someone moved them together (first g₁, then q₂, and then finally qs) into the triangular configuration shown below. The lengths of this triangle are a = 30 cm, b 40 cm, and c = 50 cm. 9-12MC c 0.5m 0.3m α +19MC +154C b 0.4m (a) What is the electrical potential energy of the system after q is brought into place, but before q₂ and qs are brought into place? APE=-Ed APE=a(-.d) APE=0 no charges, nothing to act on (b) How does your answer in part (a) compare to the amount of work required to move q₁ into place? W=qAV (c) Write an algebraic expression for the electrical potential energy of the system after all three charges have been brought into place. APE=qAV (d) Calculate how much work was required to move all three charges into place.
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