| ⇦ | 
| ⇨ |
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 motorcycle moving with a velocity 72 kmh⁻¹ on a flat road takes a turn
- If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string
- A tuning fork A produces 4 beats per second with another tuning fork B of frequency
- Complete the reaction: ₀n¹+ ₉₂U²³⁵→₅₆Ba¹⁴⁴+……..+3n
- When 4 A current flows for 2 min in an electroplating experiment,
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A motorcycle moving with a velocity 72 kmh⁻¹ on a flat road takes a turn
- If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string
- A tuning fork A produces 4 beats per second with another tuning fork B of frequency
- Complete the reaction: ₀n¹+ ₉₂U²³⁵→₅₆Ba¹⁴⁴+……..+3n
- When 4 A current flows for 2 min in an electroplating experiment,
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