1. The problem statement, all variables and given/known data The electric potential existing in space is V(x,y,z)=B(xy+yz+zx).Find the expression for the electric field at point P(1,1,1) and it's magnitude if B=10 S.I unit. 2. Relevant equations View attachment 91091 3. The solution I actually do have the solution of problem,but I have many doubts regarding the solution. So want to list them and have them resolved.The solution is http://images.thedigilibrary.com/notes/courses/IPROFPHenC18T01ST01.ILLUS.1P.pdf page no 36 to 38. For those who(their computers )could not open this pdf and so you don't have to scroll down all the way up to page 36 Query: I will mention one ,by the time it gets resolved I will mention second ... V=B(xy+yz+zx) why?According to the question V(x,y,z)=B(xy+yz+zx) Where did (x,y,z) go?