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Physics - Capacitance

Practise 41 COMEDK previous year questions on Capacitance, compiled from papers spanning 2012 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 COMEDK tests.

Capacitance has been asked in 15 of the 15 years of COMEDK papers analysed (2012–2026), with 41 questions in all. 44% of them were easy, 54% moderate and 2% tough. Most of its questions came from 2023, with 8 questions that year. In the last three years (2024–2026) it had 16 questions across 10 papers, about 1.6 per paper.

The chapter's 5 topics are not weighted equally: Grouping of capacitors (18 questions, 44%), Capacitance (9 questions, 22%), and Capacitors with Dielectric (9 questions, 22%) have been asked the most. Grouping of capacitors has also led over the last five years, with 12 questions. Capacitance has produced the most tough questions (1).

  1. 1What is the charge on in the circuit given?09 May, 2026 (S1)Grouping of capacitors
  2. 2A capacitor of capacitance 8 F is fully charged by connecting it to a source of 200V. It is then disconnected from the supply and connected 09 May, 2026 (S2)Grouping of capacitors
  3. 3In the given figure all the capacitors \( {C}_1, {C}_2, {C}_3\) and \( {C}_4\) have the same capacitance \(4 {F}\). The emf of the cell is 125 May, 2025 (Shift)Grouping of capacitors
  4. 4The space between the two plates of a parallel plate capacitor is fully filled with a conducting slab. Then the capacitance of the capacitor25 May, 2025 (Shift)Capacitance
  5. 5Two capacitors and are charged to 100 V and 120 V respectively. It is found that upon connecting them together in parallel, the potential on10 May, 2025 (S1)Grouping of capacitors
  6. 6By connecting two given capacitors, a technician was able to make two new capacitors having the effective capacitance and . What would be th10 May, 2025 (S2)Grouping of capacitors
  7. 7When a dielectric slab of dielectric constant is used to fill the space between the plates of a parallel plate capacitor, the capacitance of10 May, 2025 (S2)Capacitors with Dielectric
  8. 8A capacitor of capacitance is charged to a potential of 24 V and then connected in parallel to an uncharged capacitor of capacitance . The f10 May, 2025 (S3)Grouping of capacitors
  9. 9A network of capacitors is as shown below. If the voltage supply is 100 V , find the energy stored in the capacitor. and10 May, 2025 (S3)Grouping of capacitors
  10. 10The potential difference between the points and of the arrangement shown in figure is2024 (Afternoon Shift)Capacitance
  11. 11The figure shows a network of five capacitors connected to a 20 V battery. Calculate the charge acquired by each 10 F capacitor.2024 (Evening Shift)Grouping of capacitors
  12. 12A parallel plate capacitor having a dielectric constant 5 and dielectric strength is to be designed with voltage rating of . The field shoul2024 (Evening Shift)Capacitance
  13. 13A parallel plate air capacitor has a plate separation of 5 mm and is charged to a potential difference of 400 V . The energy density in the 2024 (Memory Based)Force and Energy stored in capacitor
  14. 14A capacitor of is charged as shown in the figure. When the switch is turned to position 2 , the percentage of its stored energy dissipated i2024 (Memory Based)Charging and Discarging of capacitors
  15. 15The capacitance of a parallel plate capacitor is . It is connected to an ac source of having an angular frequency . If the rms value of the 2024 (Morning Shift)Capacitance
  16. 16A parallel plate capacitor is filled by a dielectric whose relative permittivity varies with the applied voltage (U) as . A similar capacito2024 (Morning Shift)Capacitors with Dielectric
  17. 17In the figure, first the capacitors are fully charged by closing the key . Then after opening the Key a dielectric material with dielectric 2023 (Evening Shift)Capacitance
  18. 18A capacitor of capacity is charged upto a potential and then connected in parallel to an uncharged capacitor of capacity . The final potenti2023 (Memory Based)Charging and Discarging of capacitors
  19. 19A dielectric of dielectric constant is introduced such that half of its area of a capacitor of capacitance is occupied by it. The new capaci2023 (Memory Based)Capacitors with Dielectric
  20. 20In the figure below, the capacitance of each capacitor is . The effective capacitance between and is2023 (Memory Based)Grouping of capacitors
  21. 21If be the capacitance and be the electric potential, then the dimensional formula of is2023 (Morning Shift)Capacitance
  22. 22A dielectric of dielectric constant is introduced such that half of its area of a capacitor of capacitance is occupied by it. The new capaci2023 (Morning Shift)Capacitors with Dielectric
  23. 23A capacitor of capacity is charged upto a potential and then connected in parallel to an uncharged capacitor of capacity . The final potenti2023 (Morning Shift)Grouping of capacitors
  24. 24In the figure below, the capacitance of each capacitor is . The effective capacitance between and is2023 (Morning Shift)Grouping of capacitors
  25. 25In the network shown in figure, the equivalent capacitance between points and is2022Grouping of capacitors
  26. 26The formula of capacitative reactance is2021Capacitance
  27. 27Two capacitors and are charged to and , respectively. When they are connected in parallel, it is found that potential on each one of them is2020Grouping of capacitors
  28. 28A spherical drop of capacitance is broken into eight drops of equal radius. Then, the capacitance of each small drop is2019Capacitance
  29. 29Effective capacitance between and in the figure shown is (all capacitances are in )2019Grouping of capacitors
  30. 30How many condensers are needed to make a condenser of ?\2018Grouping of capacitors
  31. 31The total energy stored in the condenser system shown in the figure will be2018Force and Energy stored in capacitor
  32. 32An air filled parallel plate condenser has a capacity of . The separation of the plates is doubled and the interspace between the plates is 2017Capacitors with Dielectric
  33. 33A metal plate of thickness is introduced in between the plates of a parallel plate air capacitor with plate separation of , then capacity2016Capacitors with Dielectric
  34. 34Three identical capacitors are first connected in series and then in parallel. The ratio of effective capacitances in the two cases is2016Grouping of capacitors
  35. 35A parallel plated capacitor has area separated by 3 dielectric slabs. Their relative permittivity is and thickness is , , respectively. The 2015Capacitors with Dielectric
  36. 36A parallel plate capacitor has a capacity . The separation between the plates is doubled and a dielectric medium is inserted between the pla2015Capacitors with Dielectric
  37. 37A capacitor has been charged to a potential of . Suddenly if it explodes, the energy given out is2014Force and Energy stored in capacitor
  38. 38The region between the parallel plates of capacitor is filled with parallel layers of air and paper (of dielectric constant 4). The space be2014Capacitors with Dielectric
  39. 39A spherical drop of capacitance is broken into eight drops of equal radius, then the capacitance of each small drop is2013Grouping of capacitors
  40. 40A capacitor is charged to and disconnected from the battery. If another uncharged capacitor is connected across it in parallel, then the vol2012Grouping of capacitors
  41. 41A capacitor of is connected to a cell. The maximum charge on the capacitor will be2012Capacitance

Frequently Asked Questions

1.How many questions are available for Capacitance?

This chapter includes 41 questions compiled from COMEDK papers spanning 2012 to 2026.

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

These are COMEDK questions specifically for the Capacitance chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Capacitance an important chapter for COMEDK Physics?

Capacitance has appeared in 15 of the 15 years of COMEDK papers covered here, with 41 questions across 24 papers - about 2 per paper it appears in.

4.What is the difficulty level of Capacitance questions in COMEDK?

Of the 41 questions analysed for this chapter, 44% are easy, 54% moderate and 2% tough. 2023 had the most, with 8 questions.

5.Which topics in Capacitance should I focus on?

These topics have carried the most weightage in Capacitance:

  • Grouping of capacitors - 18 questions (44%)
  • Capacitance - 9 questions (22%)
  • Capacitors with Dielectric - 9 questions (22%)
  • Capacitance has produced the most tough questions (1).
6.Is Capacitance's weightage in COMEDK going up or down?

Across all 24 papers analysed, Capacitance has averaged about 1.7 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.6 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.