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Physics - Electrostatics

Practise 36 BITSAT previous year questions on Electrostatics, compiled from papers spanning 2009 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.

Electrostatics has been asked in 15 of the 16 years of BITSAT papers analysed (2009–2024), with 36 questions in all. 42% of them were easy, 47% moderate and 11% tough. Most of its questions came from 2024, with 7 questions that year. In the last three years (2022–2024) it had 10 questions across 6 papers, about 1.7 per paper.

The chapter's 5 topics are not weighted equally: Electric Potential and Potential Energy (15 questions, 42%), Electric Field and Electric Field Lines (8 questions, 22%), and Electric Charge and Coulomb's law (7 questions, 19%) have been asked the most. Electric Potential and Potential Energy has also led over the last five years, with 5 questions. Electric Charge and Coulomb's law has produced the most tough questions (2).

  1. 1Five charges and are situated as shown in the figure, The electric flux due to this configuration through the surface S is :2024 (Memory Based Paper 1)Electric Flux and Gauss Law
  2. 2If two charges and are separated with distance ' ' and placed in a medium of dielectric constant . What will be the equivalent distance betw2024 (Memory Based Paper 2)Electric Charge and Coulomb's law
  3. 3Electric potential at a point 'P' due to a point charge of is 50 V . The distance of ' P ' from the point charge is: (Assume, )2024 (Memory Based Paper 2)Electric Potential and Potential Energy
  4. 4An oil drop of radius is held stationary under a constant electric field of due to some excess electrons presence on it. If the density of o2024 (Memory Based Paper 3)Electric Charge and Coulomb's law
  5. 5The potential of a large liquid drop when eight liquid drops are combined is 20 V , then the potential of each single drop was2024 (Memory Based Paper 3)Electric Potential and Potential Energy
  6. 6A dust particle of mass in suspended in air under the influence of an electric field of directed vertically upwards. How many electrons were2024 (Memory Based Paper 3)Electric Field and Electric Field Lines
  7. 7Electric field at point due to a charge of placed at origin will be, (coordinates are in cm )2024 (Memory Based Paper 3)Electric Field and Electric Field Lines
  8. 8The force between two small charged spheres having charges of and placed apart in air is2023 (Memory Based Paper 1)Electric Charge and Coulomb's law
  9. 9In a cuboid of dimension , a charge is placed at the centre of the surface ' ' having area of . The flux through the opposite surface to ' '2023 (Memory Based Paper 2)Electric Flux and Gauss Law
  10. 10Which one of the following graphs represents the variation of electric potential with distance from the centre of a non-conducting charged s2022Electric Potential and Potential Energy
  11. 11The electric potential is given as a function of distance metre by volt. Question: Value of electric field at is2021Electric Potential and Potential Energy
  12. 12A charge is placed at each of the opposite corners of a square. A charge is placed at each of the other two corners. If the net electrical f2021Electric Potential and Potential Energy
  13. 13Three charge q, Q and 4q are placed in a straight line of length at points distant and respectively from one end. In order to make the net f2020Electric Charge and Coulomb's law
  14. 14A charge is at a distance above a square of side . Then what is the flux linked with the surface?2020Electric Flux and Gauss Law
  15. 15In the following figures, which figure represents the variation of the electric field with distance from the centre of a uniformly charged n2019Electric Potential and Potential Energy
  16. 16Two metal plates having a potential difference of 800 V are 2 cm apart. It is found that a particle of mass 1 . 96 10 - 15 kg remains suspen2017Electric Potential and Potential Energy
  17. 17Three charges are placed at the three vertices of an equilateral triangle of side a as shown in the figure. The force experienced by the cha2017Electric Field and Electric Field Lines
  18. 18The surface charge density of a thin charged disc of radius is . The value of the electric field at the centre of the disc is . With respect2016Electric Field and Electric Field Lines
  19. 19Two identical charged spheres suspended from a common point by two massless strings of lengths I, are initially at a distance d apart becaus2016Electric Charge and Coulomb's law
  20. 20A solid sphere of radius has a charge distributed in its volume with a charge density , where and are constants and is the distance from its2015Electric Field and Electric Field Lines
  21. 21At the corners of an equilateral triangle of side a (1 metre), three point charges are placed (each of ). If this system is supplied energy 2015Electric Potential and Potential Energy
  22. 22A spherically symmetric gravitational system of particles has a mass density where is a constant. A test mass can undergo circular motion un2014Electric Potential and Potential Energy
  23. 23Two point dipoles and are located at (0,0,0) and respectively. The resultant electric field due to the two dipoles at the point is2014Electric Dipole
  24. 24Electric field in theregion is given by , then the correct expression for the potential in the region is [assume potential at infinity is ze2014Electric Potential and Potential Energy
  25. 25Two long coaxial and conducting cylinders of radius a and are separated by a material of conductivity and a constant potential difference is2014Electric Potential and Potential Energy
  26. 26Three equal charges (q) are placed at corners of an equilateral triangle of side . The force on any charge is2013Electric Charge and Coulomb's law
  27. 27In a region of space having a uniform electric field , a hemispherical bowl of radius is placed. The electric flux through the bowl is2012Electric Flux and Gauss Law
  28. 28The electric field intensity just sufficient to balance the earth's gravitational attraction on an electron will be: (given mass and charge 2012Electric Field and Electric Field Lines
  29. 29In an uniformly charged sphere of total charge Q and radius the electric field is plotted as function of distance from the centre. The graph2011Electric Field and Electric Field Lines
  30. 30A charge exerts some force on a second charge . If a 3 rd charge is brought near, then the force of exerted on2011Electric Charge and Coulomb's law
  31. 31A hollow metal sphere of radius is charged such that the potential on its surface is . The potential at a distance of from the centre of the2011Electric Potential and Potential Energy
  32. 32A charge is at a distance above a square of side . Then what is the flux linked with the surface?2010Electric Flux and Gauss Law
  33. 33Two metallic spheres of radii and are given charges of and , respectively. If these are connected by a conducting wire, the final charge on 2010Electric Potential and Potential Energy
  34. 34In a region, the potential is represented by where is in volts and are in metres. The electric force experienced by a charge of 2 coulomb si2010Electric Potential and Potential Energy
  35. 35If an electron has an initial velocity in a direction different from that of an electric field, the path of the electron is2009Electric Field and Electric Field Lines
  36. 36If on combining two charged bodies, the current does not flow then2009Electric Potential and Potential Energy

Frequently Asked Questions

1.How many questions are available for Electrostatics?

This chapter includes 36 questions compiled from BITSAT papers spanning 2009 to 2024.

2.Are these questions only from BITSAT, or from other exams too?

These are BITSAT questions specifically for the Electrostatics chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Electrostatics an important chapter for BITSAT Physics?

Electrostatics has appeared in 15 of the 16 years of BITSAT papers covered here, with 36 questions across 18 papers - about 2 per paper it appears in.

4.What is the difficulty level of Electrostatics questions in BITSAT?

Of the 36 questions analysed for this chapter, 42% are easy, 47% moderate and 11% tough. 2024 had the most, with 7 questions.

5.Which topics in Electrostatics should I focus on?

These topics have carried the most weightage in Electrostatics:

  • Electric Potential and Potential Energy - 15 questions (42%)
  • Electric Field and Electric Field Lines - 8 questions (22%)
  • Electric Charge and Coulomb's law - 7 questions (19%)
  • Electric Charge and Coulomb's law has produced the most tough questions (2).
6.Is Electrostatics's weightage in BITSAT going up or down?

Across all 18 papers analysed, Electrostatics has averaged about 2.0 questions per paper. In the last three years (2022–2024), that average has fallen, at about 1.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.