Two point charges each of magnitude 1.81 AHC are located on the x axis. One is a

Question

Two point charges each of magnitude 1.81 AHC are located on the x axis. One is at x 1.00 m and the other is at x-1.00 m. (a) Determine the electric potential on the y axis at y = 0.560 m. 0.000002811 × Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. kV (b) Calculate the change in electric potential energy of the system as a third charge of -3.52 AuC is brought from infinitely far away to a position on the y axis at y = 0.560 m. 9.89472e-22 | The response you submitted has the wrong sign. J

Explanation / Answer

a] Potential = kq1/r1 + kq2/r2

= 9e9*1.81e-6/sqrt(1^2+0.560^2) *2

= 28426 V

b] change in potential energy = q3V

= -3.52e-6*28426

= -0.1 J

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