| ⇦ | 
| ⇨ |
A parallel plate capacitor as a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A, the energy stored in the capacitor is:
Options
(a) 1/2 ?￢ﾂﾀ E²
(b) E² Ad / ?￢ﾂﾀ
(c) 1/2 ?￢ﾂﾀ E² Ad
(d) ?￢ﾂﾀ E Ad
Correct Answer:
1/2 ?￢ﾂﾀ E² Ad
Explanation:
The energy stored by capacitor U = 1/2 CV²
…(i)
V is the p.d. between two plates of the capacitor.
The capacitance of the parallel plate capacitor V = E.d. C = A ?￢ﾂﾀ / d
Substituting the value of C in equation (i)
U = 1/2 A ?￢ﾂﾀ / d (Ed)²
= 1/2 ?￢ﾂﾀ E² Ad
Related Questions: - A neutron moving with velocity v collides with a stationary particle
- Rate of photoelectric emission is proportional to
- A boy standing at top of a tower of 20 m height drops a stone
- A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T
- The velocity of image when object and mirror both are moving towards each other
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A neutron moving with velocity v collides with a stationary particle
- Rate of photoelectric emission is proportional to
- A boy standing at top of a tower of 20 m height drops a stone
- A magnetic force acting on a charged particle of charge -2µC in a magnetic field of 2T
- The velocity of image when object and mirror both are moving towards each other
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply