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.

admin:

Related Questions

  1. The half life of radioactive isotope ‘X’ is 50 years. It decays to
  2. The turn ratio of a transformer is 1:2. An electrolytic dc cell of emf 2 volt is connected
  3. A moving coil galvanometer of resistance 100 Ω is converted to ammeter by a resistance
  4. In a P-N junction
  5. A magnetic field of 1600 A/m produces a magnetic flux of 2.4 x 10⁻⁵ Wb