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Physics - Electrostatics

Practise 15 IAT (IISER) previous year questions on Electrostatics, compiled from papers spanning 2017 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty IAT (IISER) tests.

Electrostatics has been asked in 9 of the 9 years of IAT (IISER) papers analysed (2017–2026), with 15 questions in all. 20% of them were easy, 53% moderate and 27% tough. Most of its questions came from 2022, with 3 questions that year. In the last three years (2023–2026) it had 4 questions across 3 papers, about 1.3 per paper.

The chapter's 6 topics are not weighted equally: Electric Field and Electric Field Lines (6 questions, 40%), Electric Flux and Gauss Law (4 questions, 27%), and Electric Potential and Potential Energy (2 questions, 13%) have been asked the most. Electric Field and Electric Field Lines has also led over the last five years, with 4 questions. Electric Field and Electric Field Lines has produced the most tough questions (2).

  1. 1A particle of mass and electric charge starts from rest under the influence of a uniform external electric field to travel a distance in tim2026Electric Field and Electric Field Lines
  2. 2Three infinite plane sheets which have uniform positive surface charge densities , and , are arranged parallel to each other with a separati2026Electric Flux and Gauss Law
  3. 3A particle of charge and mass with kinetic energy enters an electric field set up by two parallel plates of length as illustrated in the fig2025Electric Field and Electric Field Lines
  4. 4Consider two point charges and fixed on the plane at and respectively. Another point charge having mass is released from rest at on the plan2024Electric Field and Electric Field Lines
  5. 5Particle A with charge and particle B with charge are fixed at positions and , respectively. The force on A due to B is , and that on B due 2023Electric Charge and Coulomb's law
  6. 6Two uniformly charged concentric thin spherical shells of radii and have charges and , respectively. How does the electrostatic potential va2022Electric Potential and Potential Energy
  7. 7Consider a very long cylinder of radius having a uniform positive charge density . A sphere of radius has been carved out (see figure), leav2022Electric Field and Electric Field Lines
  8. 8A conducting sphere of radius initially contains a uniform volume charge density . What is the electric flux through a spherical surface of 2022Electric Flux and Gauss Law
  9. 9Four point charges and are placed at the four vertices of a regular tetrahedron of side , while a charge is placed at its center. What is th2021Electric Potential and Potential Energy
  10. 10The charge distribution inside a sphere of radius is given by the volume charge density , where and are constants and is the radial distance2020Electric Flux and Gauss Law
  11. 11A point electric charge is placed at a corner of a cube as shown in the figure. What is the electric flux passing through the shaded surface2019Electric Flux and Gauss Law
  12. 12A capacitor with capacitance consists of two concentric spherical conductors. If the radii of the inner and the outer spherical conductors a2019Capacitance
  13. 13Two equal positive charges are placed at the vertices and of an isosceles triangle of base and height , as shown in the adjacent figure. Whe2019Electric Field and Electric Field Lines
  14. 14An electric dipole having point charges \(+q\) and \(-q\), separated by a fixed distance \(d\) is kept under the influence of a uniform elec2018Electric Dipole
  15. 15An electron of mass and charge is projected with a speed making an angle with respect to the top electrode of a parallel plate capacitor as 2017Electric Field and Electric Field Lines

Frequently Asked Questions

1.How many questions are available for Electrostatics?

This chapter includes 15 questions compiled from IAT (IISER) papers spanning 2017 to 2026.

2.Are these questions only from IAT (IISER), or from other exams too?

These are IAT (IISER) 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 IAT (IISER) Physics?

Electrostatics has appeared in 10 of the 10 years of IAT (IISER) papers covered here, with 15 questions across 10 papers - about 2 per paper it appears in.

4.What is the difficulty level of Electrostatics questions in IAT (IISER)?

Of the 15 questions analysed for this chapter, 20% are easy, 53% moderate and 27% tough. 2022 had the most, with 3 questions.

5.Which topics in Electrostatics should I focus on?

These topics have carried the most weightage in Electrostatics:

  • Electric Field and Electric Field Lines - 6 questions (40%)
  • Electric Flux and Gauss Law - 4 questions (27%)
  • Electric Potential and Potential Energy - 2 questions (13%)
  • Electric Field and Electric Field Lines has produced the most tough questions (2).
6.Is Electrostatics's weightage in IAT (IISER) going up or down?

Across all 10 papers analysed, Electrostatics has averaged about 1.5 questions per paper. In the last three years (2023–2026), that average has stayed about the same, at about 1.3 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.