JEE Main Physics: Electrostatics Practice Questions

24 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    Two point charges of 2 microcoulombs and 8 microcoulombs are placed 12 cm apart. The location of the neutral point where the electric field is zero is at a dist
    Easy
  2. Q2.
    An electric dipole is placed in a uniform electric field. The net force on the dipole is:
    Easy
  3. Q3.
    The electric potential at a distance r from a point charge q is given by:
    Easy
  4. Q4.
    If the distance between two point charges is doubled, the electrostatic force between them becomes:
    Easy
  5. Q5.
    The SI unit of electric flux is:
    Easy
  6. Q6.
    Two point charges of 4 microcoulombs and -2 microcoulombs are separated by a distance of 1 meter in air. At what distance from the 4 microcoulomb charge on the
    Medium
  7. Q7.
    A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 80 volts. What is the potential at the center of the sphere?
    Medium
  8. Q8.
    An electric dipole is placed in a uniform electric field of magnitude 200 newtons per coulomb at an angle of 30 degrees with the field. If the dipole moment is
    Medium
  9. Q9.
    Three charges each equal to q are placed at the corners of an equilateral triangle of side a. What is the electric field at the centroid of the triangle?
    Medium
  10. Q10.
    A parallel plate capacitor has plates of area 0.01 square meters separated by a distance of 0.001 meters. If the space between the plates is filled with a diele
    Medium
  11. Q11.
    Hard
  12. Q12.
    A dipole with dipole moment p is placed at a distance r from along charged wire with linear charge density lambda. The force on the dipole is proportional to:
    Hard
  13. Q13.
    Two point charges of 4 microcoulombs and -2 microcoulombs are separated by a distance of 1 meter in vacuum. At what point on the line joining the two charges is
    Medium
  14. Q14.
    A parallel plate capacitor has a capacitance of 10 microfarads. If the distance between the plates is doubled and the area of the plates is halved, what is the
    Medium
  15. Q15.
    Three charges each equal to q are placed at the corners of an equilateral triangle of side length a. What is the electric field at the centroid of the triangle?
    Medium
  16. Q16.
    A capacitor of capacitance C is charged to a potential V and then connected to an uncharged capacitor of capacitance 2C. The loss of energy in the process is
    Hard
  17. Q17.
    A point charge q is placed at a distance a from the center of an uncharged conducting spherical shell of inner radius R1 and outer radius R2. The potential at t
    Hard
  18. Q18.
    An electric dipole of dipole moment p is placed at a distance r from an infinite line charge with linear charge density lambda. The force on the dipole is
    Hard
  19. Q19.
    Two infinite non-conducting sheets with uniform surface charge densities +sigma and -sigma are placed parallel to each other at a distance d. A particle of mass
    Hard
  20. Q20.
    Two point charges of 2 microcoulombs and 4 microcoulombs are separated by a distance of 1 meter in vacuum. What is the magnitude of the electrostatic force betw
    Easy
  21. Q21.
    The electric potential at a distance r from a point charge q is proportional to which of the following?
    Easy
  22. Q22.
    An electric dipole is placed in a uniform electric field. What is the net force acting on the dipole?
    Easy
  23. Q23.
    What is the electric flux through a closed surface enclosing a charge of 8.85 picocoulombs?
    Easy
  24. Q24.
    Which of the following is the SI unit of electric field intensity?
    Easy

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