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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
Related Questions: - Which one of the following statement is FALSE ?
- A sample of radioactive element has a mass of 10 gram at an instant t=0.
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
- The instantaneous angular position of a point on a rotating wheel is given by
- A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statement is FALSE ?
- A sample of radioactive element has a mass of 10 gram at an instant t=0.
- Two charges each equal to 2µ C are 0.5m apart. If both of them exist inside vacuum
- The instantaneous angular position of a point on a rotating wheel is given by
- A radio isotope X with a half life 1.4 x 10⁹ years decays to Y which is stable
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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