Class 12 Important question Electrostatic

1. What is electrostatic force?
2. What is SI unit of charge?
3. Write the two properties of electric field line?
4. Write the two properties of electric charge?
5. What is coulomb’s law?
6. Write the SI unit of ε₀?
7. What is electric field?
8. Why electric field lines don’t cross each other?
9. What is induction of charge?
10. What is conservation of charge?
11. Why we use earthing in homes?
12. What is the value of e?
13. What is electric field near the thin sheet of charged conductor?
14.  In the given fig If the net force on Q is zero then find the value of Q/q?
                                                                

15. When a body is charge it mass will increase, decrease or same?
16. A Gaussian surface have three charge (-q), (+2q), (-q) Evaluate the net electric flux through it?
17.  Write down the unit and dimension of permittivity of free space?
18. Define electric flux?
19. Write the SI unit of electric flux?
20. What is the unit of surface charge density?
21. What is the unit of linear charged density?
22.  What is the unit of volume charged density?
23. What is principle of superposition of electric charge?
24. What is the SI unit of electric field?
25. What is dipole?