1. The SI unit of charge is the
Answer: D. coulomb
Physics Class 10 Unit 15: Electrostatics MCQs
65 multiple choice questions with the correct answer for each. Tap an option to check yourself, or switch on "Show all answers". This is page 1 of 2.
Tap an option to check your answer.
2. Electrons carry a
Answer: C. negative charge
3. The charge on an electron is
Answer: B. -1.6×10-19 C
4. Like charges
Answer: A. repel each other
5. Unlike charges
Answer: A. attract each other
6. Charge cannot be created or destroyed, only
Answer: C. transferred
7. In charging by friction, the charge that is transferred is
Answer: B. electrons
8. When a glass rod is rubbed with silk, electrons move from
Answer: D. the glass rod to the silk
9. When a rubber rod is rubbed with animal fur, the rubber rod becomes
Answer: D. negatively charged
10. A rubber rod is rubbed with fur. The fur is brought near the bulb of an uncharged electroscope. The sign of charge on the leaves is
Answer: A. positive
11. If you remove electrons from an object, it will have a
Answer: B. positive charge
12. A positive ion is formed when a
Answer: C. neutral atom loses an electron
13. Materials that conduct electric charge efficiently are called
Answer: D. conductors
14. Which of the following is an insulator?
Answer: C. Rubber
15. In conductors, the valence electrons are
Answer: B. loosely bound to their atoms
16. In insulators, even the least tightly bound electrons are
Answer: A. firmly attached to their atoms
17. The mobile electrons in a conductor are called
Answer: A. free electrons
18. On a non-spherical conductor, charges tend to move towards the
Answer: B. more pointed areas
19. The three main ways to charge objects are
Answer: C. friction, contact and induction
20. Charging by contact is also called
Answer: D. conduction
21. In charging by induction, the charge acquired by the object is
Answer: D. opposite to the inducing charge
22. A change in the distribution of charge in an object due to nearby charges is called electrostatic
Answer: A. induction
23. Earthing or grounding means
Answer: C. giving the charge a path to escape into the ground
24. A negatively charged object is brought close to a conductor and the opposite side is grounded. The conductor is left with
Answer: B. a positive charge
25. A small metal ball hangs by an insulating thread and is attracted to a positively charged rod. The ball must be
Answer: B. negative or neutral
26. A charged rod is brought near a suspended object which is repelled. The suspended object is
Answer: D. charged with the same sign
27. A negatively charged sphere touches a neutral identical sphere. Afterwards the spheres will
Answer: A. repel each other
28. An insulator can be discharged by
Answer: C. heating it above a flame
29. An insulator can also be discharged by
Answer: B. exposing it to humid conditions
30. Static electricity is more noticeable on dry days because
Answer: A. dry air does not conduct charge away
31. Pieces of paper are attracted to a charged comb because of
Answer: C. polarisation
32. An electroscope is used to
Answer: D. detect charge on an object
33. An electroscope works on the principle that
Answer: D. like charges repel
34. The leaves of a charged electroscope diverge because of
Answer: C. repulsion of like charges
35. A negatively charged electroscope has its leaves diverge more when a ______ rod is brought near.
Answer: B. negatively charged
36. A positively charged rod brought near a negatively charged electroscope causes the leaf to
Answer: A. collapse
37. An electroscope can be positively charged by induction using a negatively charged rod by
Answer: A. grounding the electroscope with a finger and then removing it
38. An electric field is the region around a charge where it
Answer: B. exerts a force on other charges
39. Electric field intensity is the
Answer: D. electrostatic force per unit positive test charge
40. The formula for electric field intensity is
Answer: C. E = F/q
41. The SI unit of electric field intensity is
Answer: D. N C-1
42. The direction of the electric field at a point is the direction of force on a
Answer: A. positive test charge
43. Electric field lines for a positive charge are directed
Answer: B. away from the charge
44. Electric field lines for a negative charge are directed
Answer: C. towards the charge
45. The density of electric field lines indicates the
Answer: B. strength of the field
46. Inside a charged conducting sphere, the electric field is
Answer: C. zero
47. A positive test charge of 30 µC experiences a force of 0.600 N. The electric field is
Answer: A. 2.00×104 N/C
48. A positive test charge experiences a force of 0.5 N in a field of 2.0 N/C. The charge is
Answer: D. 0.25 C
49. A charge of 3.0 µC is in a uniform field of 1.5 N/C. The force on it is
Answer: B. 4.5 µN
50. An electron experiences a force of 0.01 N. The electric field strength is (e = 1.6×10-19 C)
Answer: C. 6.25×1016 N/C
About Physics Class 10 Unit 15 MCQs (Federal Board)
These 65 Physics MCQs cover Class 10 Unit 15: Electrostatics of the Federal Board (FBISE) SSC-II (Class 10) syllabus. They are SLO-based MCQs as per the new pattern for FBISE exams. Each question has four options and the correct answer is shown, so you can practise for the annual examination and find the topics you still need to revise. The questions are split over 2 pages of 50. You can also read the Electrostatics notes for this chapter. Download the Electrostatics MCQs as a PDF using the button at the top of this page.