Why don't you find the potential at x=0?
Then add the potential contributions from each of the charge.
Then work= potential*e
Two point charges are located as shown in the figure, with charge q1 = +3.2 C at x = − 3.0 m, y = 0, and charge q2 = +2.5 C at x = +1.0 m, y = +2.0 m. An electron is now taken from a point very far away and placed at the origin. How much work must be done on the electron to move it to the origin?
1 J
Please show calculations, I am at a lost as how to begin...Thank you
2 answers
6. Two charges are placed as shown in figure. The magnitude of q1 is 3.00 µC, but its sign and the value of the charge q2 are not known. The
direction of the net electric field E at point P is entirely in the negative y-direction. (a) Considering the different possible signs of q1 and q2 , there are four possible diagrams that could represent the electric fields E1 and E2 produced by q1 and q2 . Sketch the four possible electric-field configurations. (b) Using the sketches from part (a) and the direction of E , deduce the signs of q1 and q2. (c) Determine the magnitude of E .
direction of the net electric field E at point P is entirely in the negative y-direction. (a) Considering the different possible signs of q1 and q2 , there are four possible diagrams that could represent the electric fields E1 and E2 produced by q1 and q2 . Sketch the four possible electric-field configurations. (b) Using the sketches from part (a) and the direction of E , deduce the signs of q1 and q2. (c) Determine the magnitude of E .