Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Capacitor question

2010 · Q89
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Capacitor
  5. /2010 · Q89

Capacitor question

2010 · Q89

NEETPhysicsCapacitorMCQ+4 / −1
Two parallel metal plates having charges +Q and −-−Q face each other at a certain distance between them. If the plates are now dipped in kerosene oil tank, the electric field between the plates will
  1. A
    become zero
  2. B
    increase
  3. C
    decrease
  4. D
    remain same
View written solutionFree

Correct answer: C

Electric field between two parallel plates placed in vacuum is given by

E=σε0E = {\sigma \over {{\varepsilon _0}}}E=ε0​σ​

In a medium of dielectric constant K, E′=σε0E' = {\sigma \over {{\varepsilon _0}}}E′=ε0​σ​

For kerosene oil K > 1 ⇒\Rightarrow⇒ E' < E

PreviousNext

More from Capacitor

  • A series combination of n1 capacitors, each of value C1, is charged by a source of potential difference 4V. When another parallel combination of n2 capacitors, each of value C2, is charged by a source of potential difference V, it has the…2010 · MCQ
  • Three capacitors each of capacitance C and of breakdown voltage V are joined in series. The capacitance and breakdown voltages of the combination will be2009 · MCQ
  • A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is2008 · MCQ
  • Two condensers, one of capacity C and other of capacity C/2 are connected to a V-volt battery, as shown in the figure. The work done in charging fully both the condensers is Includes diagram2007 · MCQ
  • A parallel plate air capacitor is charged to a potential difference of V volts. After disconnecting the charging battery the distance between the plates of the capacitor is increased using an insulting handle. As a result the potential…2006 · MCQ
  • A network of four capacitors of capacity equal to C1 = C, C2 = 2C, C3 = 3C and C4 = 4C are connected to a battery as shown in the figure. The ratio of the charges on C2 and C4 is Includes diagram2005 · MCQ
  • Three capacitors each of capacity 4 μF are to be connected in such a way that the effective capacitance is 6μF. This can be done by2003 · MCQ
  • A capacitor of capacity C1 charged upto V volt and then connected to an uncharged capacitor of capacity C2. The final potential difference across each will be2002 · MCQ