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Capacitor

19 questions · Physics · JEE Advanced
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Capacitor

19 questions · Physics · JEE Advanced

  1. Four identical thin, square metal sheets, S1​,S2​,S3​ and S4​, each of side a are kept parallel to each other with equal distance d(≪a) between them, as shown in the figure. Let C0​=dε0​a2​,… Includes table Includes diagram2024 · Shift 1 · Q49 · MCQ
  2. In a circuit shown in the figure, the capacitor C is initially uncharged and the key K is open. In this condition, a current of 1 A flows through the 1Ω resistor. The key is closed at time t=t0​. Which of the… Includes diagram2023 · Shift 1 · Q37 · Multiple correct
  3. A container has a base of 50 cm×5 cm and height 50 cm, as shown in the figure. It has two parallel electrically conducting walls each of area 50 cm×50 cm. The remaining… Includes diagram2023 · Shift 1 · Q39 · MCQ
  4. A medium having dielectric constant K>1 fills the space between the plates of a parallel plate capacitor. The plates have large area, and the distance between them is d. The capacitor is connected to a battery of voltage V, as… Includes diagram2022 · Shift 1 · Q45 · Multiple correct
  5. In the circuit shown below, the switch S is connected to position P for a long time so that the charge on the capacitor becomes q1 μ C. Then S is switched to position Q. After a long time, the charge on the capacitor is q2 μ C. The… Includes diagram2021 · Shift 1 · Q45 · Numerical
  6. In the circuit shown below, the switch S is connected to position P for a long time so that the charge on the capacitor becomes q1 μ C. Then S is switched to position Q. After a long time, the charge on the capacitor is q2 μ C. The… Includes diagram2021 · Shift 1 · Q46 · Numerical
  7. Two capacitors with capacitance values C1 = 2000 ± 10 pF and C2 = 3000 ± 15 pF are connected in series. The voltage applied across this combination is V = 5.00 ± 0.02 V. The percentage error in the calculation of the energy…2020 · Shift 2 · Q51 · Numerical
  8. A parallel plate capacitor of capacitance C has spacing d between two plates having area A. The region between the plates is filled with N dielectric layers, parallel to its plates, each with thickness, δ=Nd​. The…2019 · Shift 1 · Q49 · Numerical
  9. Three identical capacitors C1​,C2​ and C3​ have a capacitance of 1.0μF each and they are unchanged initially. They are connected in a circuit as shown in the figure and C1​ is then filled completely with a dielectric… Includes diagram2018 · Shift 1 · Q45 · Numerical
  10. Consider a simple RC circuit as shown in Figure 1. Process 1 : In the circuit the switch S is closed at t = 0 and the capacitor is fully charged to voltage V0 (i.e. charging continues for time T >> RC). In the process some… Includes diagram2017 · Shift 2 · Q51 · MCQ
  11. Consider a simple RC circuit as shown in Figure 1. Process 1 : In the circuit the switch S is closed at t = 0 and the capacitor is fully charged to voltage V0 (i.e. charging continues for time T >> RC). In the process some… Includes diagram2017 · Shift 2 · Q52 · MCQ
  12. A parallel plate capacitor having plates of area S and plate separation d, has capacitance C1 in air. When two dielectrics of different relative permittivities (ε 1 = 2 and ε 2 = 4) are introduced between the two… Includes diagram2015 · Shift 2 · Q53 · Multiple correct
  13. A parallel plate capacitor has a dielectric slab of dielectric constant K between its plates that covers 1/3 of the area of its plates, as shown in the figure. The total capacitance of the capacitor is C while that of the portion… Includes diagram2014 · Shift 1 · Q42 · Multiple correct
  14. In the circuit shown in the figure, there are two parallel plate capacitors each of capacitance C. The switch S1​ is pressed first to fully charge the capacitor C1​ and then released. The switch S2​ is then pressed to charge… Includes diagram2013 · Shift 1 · Q51 · Multiple correct
  15. In the given circuit, a charge of +80μC is given to the upper plate of the 4μF capacitor. Then in the steady state, the charge on the upper plate of the 3μF capacitor is Includes diagram2012 · Shift 2 · Q43 · MCQ
  16. A 2μF capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch S is turned to position 2 is Includes diagram2011 · Shift 1 · Q56 · MCQ
  17. At time t = 0, a battery of 10 V is connected across points A and B in the given circuit. If the capacitors have no charge initially, at what time (in seconds) does the voltage across them becomes 4 V? (Take ln5 = 1.6, ln3 = 1.1) Includes diagram2010 · Shift 2 · Q52 · Numerical
  18. A circuit is connected as shown in the figure with the switch S open. When the switch is closed, the total amount of charge that flows from Y to X is Includes diagram2007 · Shift 1 · Q50 · MCQ
  19. Column I gives certain situations in which a straight metallic wire of resistance R is used and Column II gives some resulting effects. Match the statements in Column I with the statements in Column II and indicate your answer by darkening… Includes table2007 · Shift 1 · Q63 · MCQ