Problem 3:A pyramid has a square base of side a,and four faces which are equilateral triangles.A charge Q is placed on the center of the base of the pyramid.What is the net flux of electric field emerging from one of the triangular faces of the pyramid? 1. 0 2. Q 8Eo 3. Q 2e0 4. 旦 2Eo 5. Undetermined:we must know whether Q is infinitesimally above or below the plane? Answer 2:Explain your reasoning:Construct an eight faced closed surface consisting of two pyramids with the charge at the center.The total flux by Gauss's law is just/Since each face is identical,the flux through each face is one eight the total flux or /88 33 Problem 3: A pyramid has a square base of side a, and four faces which are equilateral triangles. A charge Q is placed on the center of the base of the pyramid. What is the net flux of electric field emerging from one of the triangular faces of the pyramid? 1. 0 2. Q 8! 0 3. Qa 2 2! 0 4. Q 2! 0 5. Undetermined: we must know whether Q is infinitesimally above or below the plane? Answer 2: Explain your reasoning: Construct an eight faced closed surface consisting of two pyramids with the charge at the center. The total flux by Gauss’s law is justQ / ! 0 . Since each face is identical, the flux through each face is one eight the total flux or Q / 8! 0