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Physics - Electrostatics

Practise 40 KVPY previous year questions on Electrostatics, compiled from papers spanning 2010 to 2020. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty KVPY tests.

  1. 1The ratio of gravitational force and electrostatic repulsive force between two electrons is approximately (gravitational constant = 6 . 7 102020 (SA)
  2. 2A charge + q is situated at a distance ' d ' away from both the sides of a grounded conducting ' L ' shaped sheet as shown in the figure. Th2020 (SA)
  3. 3Consider a sphere of radius R with unform charged density and total charge Q . The electrostatic potential distribution inside the sphere is2020 (SB/SX)
  4. 4The circular wire in figure below encircles solenoid in which the magnetic flux is increasing at a constant rate out of the plane of the pag2020 (SB/SX)
  5. 5Two masses M 1 and M 2 carry positive charges Q 1 and Q 2 , respectively. They are dropped to the floor in a laboratory set up from the same2019 (SA)
  6. 6Two masses M 1 and M 2 carry positive charges Q 1 and Q 2 , respectively. They are dropped to the floor in a laboratory set up from the same2019 (SA)
  7. 7A charge + q is distributed over a thin ring of radius with line charge density = q sin 2 / r . Note that the ring is in the X Y -plane and 2019 (SB/SX)
  8. 8One can define an alpha-volt ( - V ) to be the energy acquired by an -particle when it is accelerated by a potential of 1 V . For this probl2018 (SA)
  9. 9In a particle accelerator, a current of 500 A is carried by a proton beam in which each proton has a speed of 3 10 7 m / s . The cross-secti2018 (SA)
  10. 10An electrostatic field line leaves at an angle α from point charge q 1 and connects with point charge - q 2 at an angle β ( q 1 and q 2 are 2018 (SB/SX)
  11. 11The potential due to an electrostatic charge distribution is V r = q e - r 4 0 r , where is positive. The net charge within a sphere centred2018 (SB/SX)
  12. 12Two mutually perpendicular infinitely long straight conductors carrying uniformly distributed charges of linear densities λ 1 and λ 2 are po2018 (SB/SX)
  13. 13Four identical pendulums are made by made by attaching a small ball of mass on a long thread and suspended from the same point. Now each bal19 Nov, 2017 (SA)
  14. 14A total charge is divided as and which are kept at two of the vertices of an equilateral triangle of side a. The magnitude of the electric f19 Nov, 2017 (SA)
  15. 15A particle of charge and mass enters a region of a transverse electric field of with initial velocity . The time taken for the change in the19 Nov, 2017 (SB/SX)
  16. 16Let the electrostatic field at distance from a point charge not be an inverse square but, instead an inverse cubic, e.g. Here is a constant.19 Nov, 2017 (SB/SX)
  17. 17The black shapes in the figure below are closed surfaces. The electric field lines are in red. For which case the net flux through the surfa19 Nov, 2017 (SB/SX)
  18. 18Positive point charges are placed at the vertices of a star shape as shown in the figure. Direction of the electrostatic force on a negative05 Nov, 2017 (SA)
  19. 19If some charge is given to a solid metallic sphere, the field inside remains zero and by Gauss's law all the charge resides on the surface. 05 Nov, 2017 (SB/SX)
  20. 20A positive charge is placed at the center of a neutral hollow cylindrical conducting shell with its cross section as shown in the figure bel05 Nov, 2017 (SB/SX)
  21. 21An electric field due to a positively charged long straight wire at a distance from it is proportional to in magnitude. Two electrons are or2016 (SA)
  22. 22The radius of a nucleus is given by where and is the mass number of the nucleus, the Lead nucleus has . the electrostatic force between two 2016 (SA)
  23. 23A metallic sphere is kept in between two oppositely charged plates. The most appropriate representation of the field lines is -2016 (SB/SX)
  24. 24Consider a cube of uniform charge density . The ratio of electrostatic potential at the centre of the cube to that at one of the corners of 2016 (SB/SX)
  25. 25Physical processes are sometimes described visually by lines. Only the following can cross -2016 (SB/SX)
  26. 26A point charge rotates uniformly in a vertical circle of radius . The axis of the circle is aligned along the magnetic axis of the earth. At2015 (SB/SX)
  27. 27Two equal charges of magnitude each are placed at a dictance d apart. Their electrostatic energy is E. A third charge -Q/2 is brough midway 2014 (SA)
  28. 28Two possitively charged spheres of masses , and , are suspended from a common point at the ceiling by identical insulating massless strings 2014 (SA)
  29. 29Consider a spherical shell of radius with a total charge uniformly spread on its surface (center of the chell lies at the origin . Two point2014 (SB/SX)
  30. 30An electron with an initial speed of is brought to rest by an electric field. The mass and charge of an electron are and , respectively. Ide2013 (SA)
  31. 31Consider an initially neutral hollow conducting spherical shell with inner radius r and outer radius . A point charge is now placed inside t2013 (SB/SX)
  32. 32Consider three concentric metallic spheres A, B and C of radii a, b, c respectively where a and are connected whereas is grounded. The poten2012 (SB/SX)
  33. 33Two charges and are located at points A and on a horizontal line as shown below The electric field is zero at a point which is located at a 2011 (SA)
  34. 34Given below are three schematic graphs of potential energy versus distance for three atomic particles: electron , proton and neutron , in th2011 (SB/SX)
  35. 35An isolated sphere of radius contains uniform volume distribution of positive charge. Which of the curves shown below correctly illustrates 2011 (SB/SX)
  36. 36At a distance from a uniformly charged long wire, a charged particle is thrown radially outward with a velocity in the direction perpendicul2011 (SB/SX)
  37. 37A charge is placed somewhere inside the cavity of a thick conducting spherical shell of inner radius and outer radius . A charge is placed a2010 (SB/SX)
  38. 38Two identical particles of mass ' ' and charge are shot at each other from a very great distance with an initial speed . The distance of clo2010 (SB/SX)
  39. 39Consider a uniform spherical volume charge distribution of radius . Which of the following graphs correctly represents the magnitude of the 2010 (SB/SX)
  40. 40Three equal charges are placed at the three vertices of an equilateral triangle centered at the origin. They are held in equilibrium by a re2010 (SB/SX)

Frequently Asked Questions

1.How many questions are available for Electrostatics?

This chapter includes 40 questions compiled from KVPY papers spanning 2010 to 2020.

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

These are KVPY 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 KVPY Physics?

Electrostatics has appeared in 11 of the 11 years of KVPY papers covered here, with 40 questions across 21 papers - about 2 per paper it appears in.