To apply Problem-Solving Strategy 18.1 Calculation of potential. Three point cha

Question

To apply Problem-Solving Strategy 18.1 Calculation of potential. Three point charges with values q_1 = 8.00 nC, q_2 = 1.00 nC, and q_3 = 7.00 nC are placed on three consecutive corners of a square whose side measures s = 4.00 m. Point A lies at the fourth corner of the square, diagonally across from q_2. Point B lies at the center of the square. What are the values of the electric potential at point A and at point B? How much energy (supplied as work) is required to move a test charge q_4 = 2.00 nC from point A to point B? Assume the zero of electric potential is chosen to be at infinity. What is the electric potential at point A? Express your answer numerically in volts. This question will be shown after you complete previous This question will be shown after you complete previous Think about whether your results make sense.

Explanation / Answer

partC] electric potential at A = summation kq/r

= 9e9*[8e-9/4 +1e-9/(4 sqrt2) + 7e-9/4]

= 35.34 V answer

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