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A parallel plate condenser has a uniform electric field E(V/m) in the space between the plates. If the distance between the plates is d(m) and area of each plate is A(m²) the energy (joules) stored in the condenser is
Options
(a) E² Ad / ?￢ﾂﾀ
(b) 1/2 ?￢ﾂﾀ E²
(c) ?￢ﾂﾀ E Ad
(d) 1/2 ?￢ﾂﾀ E² Ad
Correct Answer:
1/2 ?￢ﾂﾀ E² Ad
Explanation:
U = 1/2 CV²
U = 1/2 (A ?￢ﾂﾀ / d) (Ed)²
= 1/2 ?￢ﾂﾀ E² Ad
Related Questions: - The limiting angle of incidence for an optical ray that can be transmitted
- A light of wavelength 5000Å falls on a sensitive plate with photoelectric work
- 10 mA current can pass through a galvanometer of resistance 25 ohm.
- At a given temperature the root mean square velocities of oxygen and hydrogen
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The limiting angle of incidence for an optical ray that can be transmitted
- A light of wavelength 5000Å falls on a sensitive plate with photoelectric work
- 10 mA current can pass through a galvanometer of resistance 25 ohm.
- At a given temperature the root mean square velocities of oxygen and hydrogen
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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