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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.
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bar magnet has a coercivity of 4×10³ Am⁻¹. It is placed inside a solenoid
- If the magnetising field on a ferromagnetic material is increased, its permeability
- A block of mass m1 rests on a horizontal table. A light string connected
- If the earth shrink such that its mass does not change but radius decreases to one
- Following figures show the arrangement of bar magnets in different configurations
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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