# Four point charges Q1 = Q3 – 2.3 pC, Q2 = Q4 = +2.3 pC are placed at the corners of a square as shown in the figure below. Q4 Q3 S=64cm Q1 S=64cm Q2 a. How much work is required to set up such arrangement if the charges were initially infinitely far apart and at rest? b. What is the electric potential energy of the system?

Question help_outlineImage TranscriptioncloseFour point charges Q1 = Q3 – 2.3 pC, Q2 = Q4 = +2.3 pC are placed at the corners of a square as shown in the figure below. Q4 Q3 S=64cm Q1 S=64cm Q2 a. How much work is required to set up such arrangement if the charges were initially infinitely far apart and at rest? b. What is the electric potential energy of the system? fullscreen

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Physics

### Electric Charges and Fields 