Description: Practice Class 12 Physics Chapter 19 Electrostatics MCQs according to the FBISE HSSC-II assessment framework. The questions cover electric charge, Coulomb’s law, electric field strength, field lines, superposition, conductors and electrostatic induction.
1. Electrostatics is the study of electric charges that are:
2. The SI unit of electric charge is:
3. Like electric charges:
4. Unlike electric charges:
5. Coulomb’s law gives the electric force between:
6. According to Coulomb’s law, the magnitude of force between two point charges is proportional to:
7. If the distance between two point charges is doubled, their electrostatic force becomes:
8. If one of two point charges is doubled, the electrostatic force becomes:
9. In vacuum, the constant k in Coulomb’s law is equal to:
A) 
B)
C)
D)
B)
C)
D)
10. The direction of the electrostatic force between two point charges is along the:
11. The electric field at a point is defined as force per unit:
12. The SI unit of electric field strength is:
13. The electric field due to a positive point charge is directed:
14. The electric field due to a negative point charge is directed:
15. For a point charge Q, electric field magnitude at distance r is:
A) 
B)
C)
D)
B)
C)
D)
16. If the distance from a point charge is tripled, its electric field strength becomes:
17. Electric field lines are drawn so that the tangent at any point gives the:
18. Electric field lines around an isolated positive point charge are:
19. Electric field lines around an isolated negative point charge are:
20. Electric field lines can never:
21. The closer the electric field lines are, the:
22. The electric field inside an ideal conductor in electrostatic equilibrium is:
23. In electrostatic equilibrium, excess charge on an isolated conductor resides on its:
24. An electric field is uniform when its magnitude and direction are:
25. The electric field between two large oppositely charged parallel plates is approximately:
26. A test charge used to measure an electric field should be:
27. The force on a charge q placed in an electric field E is:
A) 
B)
C)
D)
B)
C)
D)
28. If a positive charge is placed in an electric field, the force on it is in the:
29. If a negative charge is placed in an electric field, the force on it is:
30. The principle of superposition states that the resultant electric field is the:
31. For two identical positive charges, the electric field at the midpoint between them is:
32. For two identical charges of opposite sign, the electric field at the midpoint is:
33. The electric force is a:
34. If the medium between two charges changes, the electrostatic force generally depends on the medium’s:
35. In a material medium, greater permittivity generally makes the electrostatic force between fixed charges:
36. The electric field of a point charge decreases with distance according to an:
37. The electric field at the centre of a uniformly charged spherical shell is:
38. At a point where the net electric field is zero, a small positive test charge experiences:
39. A charged object can exert an electrostatic force on a neutral object by:
40. Electrostatic induction involves:
41. A conductor can be charged by induction without:
42. The net electric field at a point is zero when the vector contributions from charges:
43. For a point charge, if Q is doubled and r is unchanged, electric field strength:
44. For a point charge, if Q is halved and r is doubled, electric field strength becomes:
45. Coulomb’s law has a mathematical form similar to Newton’s law of gravitation because both follow an:
46. Unlike gravitational force, electrostatic force can be:
47. The magnitude of electric field is greatest where electric field lines are:
48. For an isolated point charge, the electric field magnitude approaches zero as distance:
49. The electric field at a point is independent of the:
50. If two electric fields at a point are equal in magnitude and opposite in direction, their resultant is:
Chapter-wise Navigation
- Chapter 15: Gravitational Potential
- Chapter 16: Statistical Mechanics and Thermodynamics
- Chapter 17: Simple Harmonic Motion
- Chapter 18: Diffraction and Interference
- Chapter 19: Electrostatics
- Chapter 20: Alternating Current
- Chapter 21: Quantum Physics
- Chapter 22: Nuclear Physics
- Chapter 23: Cosmology
- Chapter 24: Earth Climate
- Chapter 25: Medical Imaging
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Syllabus & SLO Alignment
FBISE syllabus: National Curriculum of Pakistan 2022–23, FBISE Assessment Framework for Physics Grade XII.
Content area: Domain E – Electricity and Magnetism
Relevant SLOs: P-12-E-01 to P-12-E-13
Alignment: Electric potential and potential gradient; electric potential energy; capacitance; capacitors and energy storage; electrostatic field/potential applications.
Assessment note: The FBISE framework distinguishes summative SLOs used in the final examination from formative SLOs used in teaching-learning. MCQs on this page should be treated as practice aligned to the listed content/SLOs, not as a reproduction of the official FBISE paper.