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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: - Identify the pair whose dimensions are equal
- In the relation n=PV/RT, n stands for
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- In stretching a spring by 2 cm, energy stored is given by U. Had is been stretched
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Identify the pair whose dimensions are equal
- In the relation n=PV/RT, n stands for
- The electric current in AC circuit is given by the relation i-3 sinωt+4 cos ωt.
- In stretching a spring by 2 cm, energy stored is given by U. Had is been stretched
- An avarage induced e.m.f. of 1 V appears in a coil when the current in it is changed
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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