Capacitor with two dielectric layers parallel to the plates (in series)
This type of question, asked 5 times: 4 May 2023 S1, 16 May 2023 S2, 10 May 2024 S2, 20 Apr 2025 S2, 14 May 2026 S1. All 5 questions below, oldest first.
Try each one first, then open its answer.
Question 1
4 May 2023 S1
2A parallel plate air capacitor, with plate separation has a capacitance of 9 pF. The space between the plates is now filled with two dielectrics, the first having and thickness , while the 2nd has and thickness . The capacitance of the new capacitor isTap an option to check your answer.
Question 2
16 May 2023 S2
46Air capacitor has capacitance . The space between two plates of capacitor is filled with two dielectrics as shown in figure. The new capacitance of the capacitor is . The ratio is ( distance between two plates of capacitor, and are dielectric constants)Tap an option to check your answer.
Question 3
10 May 2024 S2
20Two dielectric slabs having dielectric constant '' and '' of thickness '' and '' are inserted between the plates as shown in figure. The net capacitance between A and B is ( is permittivity of free space)Tap an option to check your answer.
Question 4
20 Apr 2025 S2
26A parallel plate air capacitor has capacitance . It is equally filled with parallel layers of materials of dielectric constants and . Now its capacity becomes . The ratio to isTap an option to check your answer.
Question 5
14 May 2026 S1
127A parallel plate air capacitor has capacity and plate area . Now the space between its plates is filled by two slabs of thickness each, having dielectric constants and . Distance of separation between plates is . The capacity of the capacitor is ( = permittivity of free space)Tap an option to check your answer.