Solve the all parts of given question:
Question: Consider a uniformly charged rod of length L and charge Q.
Part A: Find an expression for the electric potential at a distance d from the end of the rod along the axis of the rod.
Part B: Using the appropriate series expansion (see e.g. your first Worksheet), evaluate the result for d >> L.
Please show work and steps. Do not just copy paste from the internet. Thanks.