JEE Physics

Capacitors & Dielectrics: JEE Questions & Solutions

41 previous-year JEE Physics questions on Capacitors & Dielectrics, each with a worked step-by-step solution.

Advanced

Previous-year questions

  1. 01A parallel plate capacitor has capacitance C, when there is vacuum within the parallel plates. A sheet having thickness 1/3d of the…MCQMediumJEE 2026
  2. 02A capacitor P with capacitance 10×10⁻⁶ F is fully charged with a potential difference of 6.0 V and disconnected from the battery. The…NVAEasyJEE 2026
  3. 03The space between the plates of a parallel plate capacitor of capacitance C (without any dielectric) is now filled with three dielectric…NVAMediumJEE 2026
  4. 04A parallel plate capacitor with plate separation 5 mm is charged by a battery. On introducing a mica sheet of thickness 2 mm and…MCQMediumJEE 2026
  5. 05Three parallel plate capacitors each with area A and separation d are filled with two dielectric (k₁ and k₂) in the following fashion. (k₁…MCQMediumJEE 2026
  6. 06Identify the correct statements: [A.] Effective capacitance of a series combination of capacitors is always smaller than the smallest…MCQEasyJEE 2026
  7. 07A parallel-plate capacitor of capacitance 40 μ F is connected to a 100 V power supply. Now the intermediate space between the plates is…MCQEasyJEE 2025
  8. 08Identify the valid statements relevant to the given circuit at the instant when the key is closed. A: There will be no current through…MCQEasyJEE 2025
  9. 09At steady state, the charge on the capacitor, as shown in the circuit below, is μ C.NVAMediumJEE 2025
  10. 10Consider a parallel plate capacitor of area A (of each plate) and separation d between the plates. If E is the electric field and ε₀ is the…MCQEasyJEE 2025
  11. 11A parallel plate capacitor was made with two rectangular plates, each with a length of l = 3 cm and breadth of b = 1 cm. The distance…MCQMediumJEE 2025
  12. 12Two capacitors C₁ and C₂ are connected in parallel to a battery. Charge-time graph is shown below for the two capacitors. The energy stored…MCQEasyJEE 2025
  13. 13A parallel plate capacitor of capacitance 1 μF is charged to a potential difference of 20 V. The distance between plates is 1 μm. The…MCQEasyJEE 2025
  14. 14A capacitor, C₁ = 6 μ F, is charged to a potential difference of V₁ = 5 V using a 5V battery. The battery is removed and another capacitor,…MCQEasyJEE 2025
  15. 15A parallel plate capacitor consisting of two circular plates of radius 10 cm is being charged by a constant current of 0.15 A. If the rate…NVAMediumJEE 2025
  16. 16A parallel plate capacitor is filled equally (half) with two dielectrics of dielectric constant ε₁ and ε₂, as shown in figures. The…MCQMediumJEE 2025
  17. 17Using a battery, a 100 pF capacitor is charged to 60 V and then the battery is removed. After that, a second uncharged capacitor is…MCQEasyJEE 2025
  18. 18Four capacitors each of capacitance 16 μ F are connected as shown in the figure. The capacitance between points A and B is: (in μ F).NVAEasyJEE 2025
  19. 19Three parallel plate capacitors C₁, C₂, and C₃ each of capacitance 5 μF are connected as shown in the figure. The effective capacitance…MCQEasyJEE 2025
  20. 20A parallel plate capacitor has charge 5 × 10⁻⁶ C. A dielectric slab is inserted between the plates and almost fills the space between the…NVAEasyJEE 2025
  21. 21Two metal spheres of radius R and 3R have same surface charge density σ. If they are brought in contact and then separated, the surface…MCQMediumJEE 2025
  22. 22Space between the plates of a parallel plate capacitor of plate area 4 cm² and separation of d = 1.77 mm, is filled with two uniform…NVAMediumJEE 2025
  23. 23In the given figure, the charge stored in a 6 μF capacitor, when points A and B are joined by a connecting wire, is μC: The figure shows: a…NVAMediumJEE 2024
  24. 24A capacitor of capacitance C and potential V has energy E. It is connected to another capacitor of capacitance 2C and potential 2V. Then…NVAMediumJEE 2024
  25. 25A parallel plate capacitor with air between the plates has a capacitance of 15 pF. The separation between the plates becomes twice and the…NVAEasyJEE 2023
  26. 26A parallel plate capacitor has plate area 40 cm² and plate separation 2 mm. The space between the plates is filled with a dielectric medium…MCQMediumJEE 2023
  27. 27A capacitor has a capacitance of 5 μ F when its parallel plates are separated by an air medium of thickness d. A slab of material with a…NVAMediumJEE 2023
  28. 28Two isolated metallic solid spheres of radii R and 2R are charged such that both have the same charge density σ. The spheres are then…MCQMediumJEE 2023
  29. 29A capacitor of capacitance 900 μ F is charged by a 100 V battery. The capacitor is disconnected from the battery and connected to another…NVAMediumJEE 2023
  30. 30Two parallel plate capacitors C₁ and C₂, each having capacitance of 10 μ F are individually charged by a 100 V D.C. source. Capacitor C₁ is…NVAMediumJEE 2023
  31. 31Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Two metallic spheres are…MCQEasyJEE 2023
  32. 32A parallel plate capacitor with plate area A and plate separation d is filled with a dielectric material of dielectric constant K = 4. The…NVAMediumJEE 2023
  33. 33As shown in the figure, two parallel plate capacitors having equal plate area of 200 cm² are joined in such a way that a ≠ b. The…NVAMediumJEE 2023
  34. 34The equivalent capacitance of the combination shown is:MCQMediumJEE 2023
  35. 35The distance between two plates of a capacitor is d and its capacitance is C₁, when air is the medium between the plates. If a metal sheet…MCQMediumJEE 2023
  36. 36A parallel plate capacitor of capacitance 2 F is charged to a potential V. The energy stored in the capacitor is E₁. The capacitor is now…MCQEasyJEE 2023
  37. 37In the given circuit, C₁ = 2 μF, C₂ = 0.2 μF, C₃ = 2 μF, C₄ = 4 μF, C₅ = 2 μF, C₆ = 2 μF. The charge stored on capacitor C₄ is μC. The…NVAMediumJEE 2023
  38. 3864 identical drops each charged up to a potential of 10 mV are combined to form a bigger drop. The potential of the bigger drop will be mV.NVAEasyJEE 2023
  39. 39In the network shown below, the charge accumulated in the capacitor in steady state will be: The figure shows: a rectangular network of…MCQEasyJEE 2023
  40. 40In the circuit shown below, the energy stored in the capacitor is n μJ. The value of n is.NVAMediumJEE 2023
  41. 41In the given figure, the total charge stored in the combination of capacitors is 100 μ C. The value of x is.NVAEasyJEE 2023

Frequently asked questions

Our bank has 41 previous-year JEE Physics questions tagged to Capacitors & Dielectrics, drawn from JEE papers between 2023 and 2026, including 6 from 2026 alone. Each comes with a full step-by-step solution.

Capacitors & Dielectrics is rated Advanced overall for JEE Physics. The PYQs on this page break down as 23 medium, 18 easy.

Of the 41 previous-year questions on Capacitors & Dielectrics, 22 are multiple-choice (MCQ) and 19 are numerical-value (NVA) questions.

Based on recent paper analysis, Capacitors & Dielectrics is worth about 3 marks in JEE Main. It sits in Electrostatics, a Class 12 Physics chapter.

More Electrostatics topics

Electric Potential & Potential Energy26Gauss's Law Applications26Electric Field & Field Lines17Electric Dipole16Coulomb's Law & Superposition Principle8

Master Capacitors & Dielectrics with AI-adaptive practice.

Practice unlimited Capacitors & Dielectrics questions, track your mastery, and get every step explained by an AI tutor.

Start free trial