Solve the following question:
Question; Point charges -4.4 µC and +2.2 µC are placed on the x-axis at (10 m, 0) and (-10 m, 0), respectively.
Part I: Find the point to the left of the positive charge where the electric potential vanishes.
Part II: Explain is the electric field at the point found in part (a) positive, negative, or zero?
I need expert help for the given question.