Question 4 A charge +q is suspended a distance d/2 above the centre of a flat square surface with side-length d. (a) Can the electric flux through the square surface be calculated using ΦE = E→⋅A→? Explain your answer. (b) Calculate the electric flux through the square surface using Gauss's law, and explain your reasoning. Question 5 Four identical charges, each with charge q, have been placed on the corners of a square with side-length L. How much work would you need to perform in order to move the charges to the corners of a square with side-length 3L? Answer: Wex = −14πϵ0 q2 L23[4+2]
![Question 4 A charge +q is suspended a distance d/2 above the centre of a flat square surface with side-length d. (a) Can the electric flux through the square surface be calculated using ΦE = E→⋅A→? Explain your answer. (b) Calculate the electric flux through the square surface using Gauss's law, and explain your reasoning. Question 5 Four identical charges, each with charge q, have been placed on the corners of a square with side-length L. How much work would you need to perform in order to move the charges to the corners of a square with side-length 3L? Answer: Wex = −14πϵ0 q2 L23[4+2]](https://www.doubtrix.com/uploads/editor/0992358823HYdbvYMJwn.jpg)
