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 Physics Question

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.

Related Questions:

  1. As per Bohr model, the minimum energy (in eV) required to remove an electron
  2. When a ceiling fan is switched off its angular velocity reduces to 50% while
  3. If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
  4. Water flows through a pipe. The area of cross-section at one place A₁=10 cm²,
  5. A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions

Topics: Electrostatics (146)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*