please help me

1) There is a straight and circular charged wire in the figure. In both cases the length is L and the linear charge density is constant 1. b) What is the direction of total field due to the wire, and why? Sketch to the figure a graphical solution, and write the expression of the remaining component (the absolute value). c) When the field is integrated using the charge elements, which of the parameters are constant in intregration and which of them are not? Consider both cases of the figure below. deit - _ de dq r X X L = 279