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A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb. When it is discharged, energy liberated will be
Options
(a) 1 J
(b) 4 J
(c) 10 J
(d) 20 J
Correct Answer:
10 J
Explanation:
Energy of capacitor = (1/2) QV
= (1/2) × 0.1 × 200 = 10 J
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The physical quantity which does not have the same dimensions as the other three is
- When a ball is thrown up vertically with velocity vₒ,it reaches a maximum height
- A resistance R draws power P when connected to an AC source. If an inductance
- According to Bohr model of hydrogen atom, only those orbits are permissible
- An electron having charge e and mass m is moving in a uniform electric field E.
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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