An electric dipole consists of two charges, +2Q and 2Q, that are separated by a

Question

An electric dipole consists of two charges, +2Q and 2Q, that are separated by a distance, d = 52 cm, as shown. A particle carrying charge 2q is located a vertical distance 2h above the middle of the dipole axis and another with charge q is a distance h below, where h = 19 cm. Use Q = 67 nC and q = 0.26 µC. Four Point Charges 001 (a) What is the electric potential energy of the four charges? UE = -2.44 Correct: Your answer is correct. mJ (b) How much work was done by whatever external agent assembled the four charges? Wext = 0 Incorrect: Your answer is incorrect. mJ (c) What is the electric potential due to the four charges at point A? VA = 0 Correct: Your answer is correct. V. 4. Suppose that a penguin moved the bottom charge (q) to point A. (a) What is the electric potential at the charge's initial location? Vi = 0 Incorrect: Your answer is incorrect. kV (b) What is the electric potential at its final location? Vf = 12.3021 Correct: Your answer is correct. kV (c) How much work was done by the electric field (of the other three charges)? WE = 0 Incorrect: Your answer is incorrect. mJ (d) How much work was done by the penguin? Wpenguin = 1.07 Incorrect: Your answer is incorrect. mJ (e) How much did the electric potential energy of the system change? UE = -1.07 Correct: Your answer is correct. mJ (f) What is the electric potential energy of the four charges now? Uf = -3.51 Correct: Your answer is correct. mJ

Explanation / Answer

b) W=-U=2.44 mJ

d) Point A is not shown, please post the image the calculation implies the equation U=kq/r (using the sign of each charge)

c) W=-U=.12.3

For the following questions please include the image to find the distances to point A. Thanks a lot

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