Dielectrics are of two types: (i) Non-Polar Dielectrics: When the centre of positive charge coincides with the centre of negative charge in a molecule, e.g., Nitrogen, Oxygen, CO 2 etc. (ii) Polar ...

NCERT Solutions for Class 12th Physics, Chapter 2 - Electrostatic Potential and Capacitance are available here. These solutions are easy to understand and also ...