Physics · Electrostatic Potential and 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 into it. Which of the following statements is incorrect?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The energy stored in the capacitor decreases K times.
- 2The change in energy stored is 12 CV2(1K - 1).
- 3The charge on the capacitor is not conserved.✓
- 4The potential difference between the plates decreases K times.
Correct answer
The charge on the capacitor is not conserved.
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