Electrostatics deals with the study of forces, fields and potentials arising from static charges. Seeing a spark or hearing a crackle from a sweater during dry weather is a common occurrence. Furthermore, this raises the essential question of what could be a viable explanation for this particular incident. Additionally, students must consider lightning as an example of an electric discharge. Moreover, this lightning appears in the sky during thunderstorms. All of these experiences are the consequence of electric charges being discharged through your body as a result of rubbing insulating surfaces. It can also be caused by the generation of static electricity.
CBSE Class 12 Physics Notes Chapter 1 Electric Charges and Fields discusses these facts in detail.