Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Capacitor question

2007 · Shift 0 · Q80
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Capacitor
  5. /2007 · Shift 0 · Q80

Capacitor question

2007 · Shift 0 · Q80

JEE MainPhysicsCapacitorMCQ+4 / −1
A parallel plate condenser with a dielectric of dielectric constant KKK between the plates has a capacity CCC and is charged to a potential VVV volt. The dielectric slab is slowly removed from between the plates and then reinserted. The net work done by the system in this process is
  1. A
    zero
  2. B
    12 (K−1) CV2{1 \over 2}\,\left( {K - 1} \right)\,C{V^2}21​(K−1)CV2
  3. C
    CV2(K−1)K{{C{V^2}\left( {K - 1} \right)} \over K}KCV2(K−1)​
  4. D
    (K−1) CV2\left( {K - 1} \right)\,C{V^2}(K−1)CV2
PreviousNext

More from Capacitor

  • A parallel plate capacitor is made by stacking n equally spaced plates connected alternatively. If the capacitance between any two adjacent plates is ′C′ then the resultant capacitance is2005 · MCQ
  • A fully charged capacitor has a capacitance ′C′. It is discharged through a small coil of resistance wire embedded in a thermally insulated block of specific heat capacity ′s′ and mass ′m′. If the temperature of the block is raised…2005 · MCQ
  • A sheet of aluminium foil of negligible thickness is introduced between the plates of a capacitor. The capacitance of the capacitor2003 · MCQ
  • The work done in placing a charge of 8×10−18 coulomb on a condenser of capacity 100 micro-farad is2003 · MCQ
  • Capacitance (in F) of a spherical conductor with radius 1m is2002 · MCQ
  • If there are n capacitors in parallel connected to V volt source, then the energy stored is equal to2002 · MCQ
  • A parallel plate capacitor is filled equally(half) with two dielectrics of dielectric constants ε1​ and ε2​, as shown in figures. The distance between the plates is d and area of each plate is A. If capacitance… Includes diagram2025 · MCQ
  • Using a battery, a 100 pF capacitor is charged to 60 V and then the battery is removed. After that, a second uncharged capacitor is connected to the first capacitor in parallel. If the final voltage across the second capacitor is 20 V ,…2025 · MCQ