Navigate

A parallel plate air capacitor of capacitance C is connected to a cell of emf

A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dielectric constant K, which can just fill the air gap of the capacitor, is now inserted in it. Which of the following is incorrect?

Options

(a) The potential difference between the plates decreases K times
(b) The energy stored in the capacitor decreases K times
(c) The change in energy stored is (CV²/2) * (1/K -1)
(d) The charge on the capacitor is not conserved

Correct Answer:

The charge on the capacitor is not conserved

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

AIPMT2015
admin:

Related Questions

  1. When light of wavelength 300 nm falls on a photoelectric emitter,
  2. Energy in a current carrying coil is stored in the form of
  3. The earth is assumed to be a sphere of radius R. A platform is arranged at a height R
  4. The acceleration due to gravity at a place is π² m/sec². Then the time period
  5. An α-particle of energy 5 MeV is scattered through 180⁰ by a fixed uranium nucleus.