Two infinitely long parallel wires have a uniform charge per unit length lambda and -lambda respectively. The wires are parallel with the z axis. The positively charged wire intersects the x axis at x = -a. and the negatively charged wire intersects the ,r axis at ,r = +a. (a) Choose the origin as the reference point where the potential is zero, and express the potential at an arbitrary point (x. y) in the xy plane in terms of .v, y, lambda. and a. Use this expression to solve for the potential everywhere 0n the y axis, (b) Using a = 5.00 cm and lambda = 5.00 nC/m. obtain the equation for the equipotential in the xy plane that passes through the point , x =1/4, y = 0
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