JEE MAIN · PHYSICS · ELECTROSTATICS

JEE Main Electrostatics Questions & Solutions

15 solved questions on Electrostatics, ranging from easy to JEE-Advanced-flavour hard. Click any to see the full solution.

10Easy
5Medium
0Hard

All 15 questions

  1. Medium MCQ +4 / -1

    When a dielectric is inserted into an isolated (disconnected) charged capacitor, the voltage across the plates:

    View solution →
  2. Easy TRUE_FALSE +2 / -1

    The dielectric constant of vacuum is exactly 1.

    View solution →
  3. Easy MCQ +4 / -1

    Introducing a dielectric slab (dielectric constant $K$) fully into a parallel-plate capacitor increases its capacitance by a factor of:

    View solution →
  4. Medium INTEGER +4 / -1

    A 10 μF capacitor is charged to 100 V. Energy stored is $x$ mJ. Find $x$.

    View solution →
  5. Easy MCQ +4 / -1

    Two capacitors $C_1 = 2\,\mu F$ and $C_2 = 3\,\mu F$ are connected in parallel. The equivalent capacitance is:

    View solution →
  6. Easy MCQ +4 / -1

    The capacitance of a parallel-plate capacitor doubles if:

    View solution →
  7. Easy MCQ +4 / -1

    For a charged conducting sphere of radius $R$, the field inside (at $r<R$) is:

    View solution →
  8. Medium MCQ +4 / -1

    The electric field at distance $r$ from a long uniformly charged wire (linear charge density $\lambda$) is:

    View solution →
  9. Medium MCQ +4 / -1

    A point charge $Q$ is placed at the center of a cube. The flux through one face is:

    View solution →
  10. Easy TRUE_FALSE +2 / -1

    Inside a conductor in electrostatic equilibrium, the electric field is zero.

    View solution →
  11. Easy MCQ +4 / -1

    A charge of $+4\,\mu C$ is placed at origin. The electric field at a point 2 m away is:

    View solution →
  12. Easy MCQ +4 / -1

    Electric field lines:

    View solution →
  13. Medium INTEGER +4 / -1

    Two charges $+q$ and $-q$ placed 2 m apart attract with 9 N. Find $q^2/10^{-9}$ in C² (take $k=9\times 10^9$).

    View solution →
  14. Easy MCQ +4 / -1

    If the distance between two charges is doubled, the electrostatic force becomes:

    View solution →
  15. Easy MCQ +4 / -1

    Two point charges of $+2\,\mu C$ each are separated by 1 m in vacuum. The force between them is (take $k = 9\times 10^9$ N·m²/C²):

    View solution →

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →