The problem is given in the first picture (example 6.5). I need to generate equipotenial surfaces and flux lines as shown in the second picture. I need the MATLAB code implementation.

50 V Gap FIGURE 6.6 For Practice Exercise 6.4 PRACTICE EXERCISE 6.4 A large conducting cone (?-459) is placed on a conducting plane with a tiny gap separating it from the plane as shown in Figure 6.6. If the cone is connected to a 50 V source, find V and E at (-3, 4,2). Answer: 27.87 V,-11.35a, V/m. (a) Determine the potential function for the region inside the rectangular trough of infi- (b) For Vo 100 V and b 2a, find the potential at x a/2, y 3a/4. (a) The potential V in this case depends on x and y. Laplace's equation becomes XAMPLE 6.5 AI nite length whose cross section is shown in Figure 6.7. Solution: FIGURE 6.7 Potential V(x, y) due to a conducting rectangular trough; for Example 6.5. V Vo Gap Gap 50 V Gap FIGURE 6.6 For Practice Exercise 6.4 PRACTICE EXERCISE 6.4 A large conducting cone (?-459) is placed on a conducting plane with a tiny gap separating it from the plane as shown in Figure 6.6. If the cone is connected to a 50 V source, find V and E at (-3, 4,2). Answer: 27.87 V,-11.35a, V/m. (a) Determine the potential function for the region inside the rectangular trough of infi- (b) For Vo 100 V and b 2a, find the potential at x a/2, y 3a/4. (a) The potential V in this case depends on x and y. Laplace's equation becomes XAMPLE 6.5 AI nite length whose cross section is shown in Figure 6.7. Solution: FIGURE 6.7 Potential V(x, y) due to a conducting rectangular trough; for Example 6.5. V Vo Gap Gap