12P01 - Electric Charges and Fields - Force due to Multiple Charges

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Class 12 Physics – Electric Charges and fields ( Electrostatics )
All of us have the experience of seeing a spark or hearing a crackle when we take off our synthetic clothes or sweater, particularly in dry weather. This is almost inevitable with ladies garments like a polyester saree. Have you ever tried to find any explanation for this phenomenon? Another common example of electric discharge is the lightning that we see in the sky during thunderstorms. So what actually causes this? After this chapter, we will be able to answer these questions. We’ll learn
1. What is electrostatics?
2. Charge and its properties.
3. What are the different modes of charge transfer?
4. Force due to a point charge and multiple charges.
5. Electric field, electric field lines and field due to multiple charges.
6. Electric field inside a conductor.
7. Electrostatic potential energy and electrostatic potential.
8. Relation between field and potential.
9. What are equipotential surfaces?
10. What are dipoles? Field and potential due to a dipole.
11. Dipole in external field.
12. Continuous charge distributions and field and potential caused due to them.
13. What is electric flux?
14. Gauss’s law and its applications.

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