Class 12 CBSE conceptual questions for board exams

This post contains conceptual questions for class 12 board exams although anyone can solve them if interested. Try to solve these questions on your own in my net post I'll publish 3 marks and 5 marks sample questions. Question 1. W cm apart on a hat is the amount of work done in moving 100 nC charge between two points 5 cm apart on an equipotential surface?