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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
- A black hole is an object whose gravitational field is so strong that even light
- There are four light-weight-rod samples A,B,C,D seperately suspended by threads
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- A rod lies along the X-axis with one end at the origin and the other at x→∞. It carries
- If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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