Hello I need help with part C the second picture. Can please explain the reasoning and show steps to the answer? I know Ex (the electric field in the positive x direction is constant, by I am confused on the integration) Thank you

(50%) Problem 1: A Gaussian surface in the shape of a rectangular box is centered at the origin= and its edges are parallel to the coordinate axes. Edges parallel to the 3: axis have length a; edges parallel to the 3: axis have length in; edges parallel to the z axis have length is. Auniforrn and constant electric field E = Ex? Erj Elli: fills the region of space which contains the rectangular box. * *6% Part (c) Perform a flux integral over the front face of the box to obtain the outward electric flux. @ front: through this one face. PE. front = Ex dA2/2| 7 8 9 HOME k a b TA 4 5 6 + C dA 1 2 3 P 0 END X V Z VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 1 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. -Recall that any constant factors inside an integral may be factored out as laffx) dx = alfix)dx. The integral may be much easier than it initially appears