A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then…
Physics · Class 12 · CBSE — Electrostatic Potential & Capacitance
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?
- The charge on the capacitor is not Conserved
- The change in energy stored is \(\frac{1}{2} C V^{2}\left(\frac{1}{k}-1\right)\)
- The energy stored in the capacitor decreases \(\kappa\) times
- The potential difference between the plates decreases \(\kappa\) times
Answer
(A) The charge on the capacitor is not Conserved
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- Two insulated metallic spheres of 3 F and 5 F capacitances are charged to 300 V and 500 V respectively. The…
- A conducting sphere of radius R is given a charge Q. The electric potential and the electric field at the…
- A proton is taken from point P 1 to point P 2 , both located in an electric field. The potentials at points P…
- Assertion (A): The force between the plates of a parallel plate capacitor is proportional to the charge on…
- An particle and a proton are accelerated from rest through the same potential difference. The ratio of linear…
- A parallel plate air capacitor has capacity C distance of separation between plates is d and potential…
- The electric field at a point in a region is given by E = r | r |^ 3 , where is a constant and r is the…
- A capacitor made of two circular plates each of radius 12 cm and separated by 5 mm. The capacitor is being…
More Electrostatic Potential & Capacitance questions · Browse all practice questions